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Free Finance Tools — Calculators, Planners and Analysers | LazyTools

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Free Finance Tools — Calculators, Planners and Analysers

Free finance tools for loans, budgeting, investment, tax, economics and more. No account needed and no data stored.

Finance touches every part of life. From monthly bills to investment returns, money decisions are constant. Furthermore, having the right calculation tool leads to far better choices.

All tools run locally in your browser. Nothing is sent to any server. Moreover, no account is created and nothing is stored about you.

The collection spans twelve finance areas. These cover budgeting, loans, investment, savings, business analysis, tax, economics and more. Additionally, use the search box or dropdown below to jump to any section.

Personal Finance

Tools for budgeting, income planning and spending control. Furthermore, every calculation runs instantly in your browser.

Budgeting & Income

50/30/20 Rule Calculator

Split your income into needs, wants and savings in seconds. Furthermore, the tool shows exactly how much belongs in each bucket.

Annual Income Calculator

Enter your hourly or daily rate to find your yearly income. Additionally, adjust hours and weeks to match your actual schedule.

Monthly Budget Planner

Plan your full monthly budget in one place. Furthermore, see your surplus or shortfall clearly after every expense is added.

Discretionary Income Calculator

Find how much money you have after tax and essential costs. As a result, you can plan spending and saving more clearly.

Disposable Income Calculator

See your take-home income after all tax is removed from gross pay. Additionally, use this figure as the starting point for any budget.

Expense Tracker

Track spending by category across the month. Furthermore, spotting where money goes is the first step to spending less.

Goals & Decisions

Emergency Fund Calculator

Enter your monthly costs to find your target emergency fund size. Furthermore, choose the number of months of cover you want to hold.

Net Worth Calculator

Subtract total debts from total assets to find your net worth. Furthermore, tracking this number over time shows real financial progress.

Savings Goal Calculator

Enter your target amount and deadline to find your required monthly saving. Additionally, adjust the interest rate to see how returns affect the plan.

Pay Raise Calculator

Find your new salary after a pay rise. Furthermore, see the extra monthly income and percentage change at a glance.

Salary to Hourly Calculator

Convert any annual salary to an hourly rate instantly. Moreover, reverse the calculation to find the salary behind any hourly wage.

True Job Offer Comparator

Compare two job offers on total compensation, not just salary. Furthermore, commute cost, benefits and hours all affect the true value.

Vacation Vs. Retirement Calculator

See how spending money on a trip today affects future retirement savings. As a result, the trade-off between enjoyment and long-term wealth becomes clear.

Hire or Automate Calculator

Compare the real cost of hiring staff versus buying software or equipment. Furthermore, the result helps you make a data-driven staffing decision.

Sunk Cost Fallacy Detector

Identify when a past expense is influencing a current decision. Moreover, learning to ignore sunk costs leads to better financial choices.

Opportunity Cost Calculator

Find the value of the option you give up when making a financial choice. Additionally, this helps you weigh decisions with a clearer head.

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Loans & Borrowing

EMI and debt tools for any loan or borrowing decision. Moreover, knowing the full cost before you borrow protects your finances.

EMI & Repayment

EMI Calculator

Enter any loan amount, rate and tenure to find your monthly EMI. Additionally, view a full breakdown of interest and principal in every payment.

Home Loan EMI Calculator

Enter your home loan details to find the monthly repayment amount. Additionally, see total interest paid over the entire mortgage term.

Car Loan EMI Calculator

Enter loan amount, interest rate and tenure to find your car EMI. Furthermore, view the full interest cost before committing to a deal.

Bike Loan EMI Calculator

Find your monthly bike loan payment based on the amount, rate and term. Additionally, see the total interest you will pay over the loan.

Personal Loan EMI Calculator

Find your monthly personal loan payment from the amount, rate and tenure. Moreover, view total cost to decide if the loan is affordable.

FHA Loan Calculator

Find your monthly FHA loan payment including mortgage insurance. Furthermore, view total repayment cost over the full loan term.

Amortization Schedule Calculator

See a full loan repayment table showing principal and interest in every payment. Furthermore, watch how the balance falls with each instalment.

Loan Moratorium Calculator

See how a payment pause affects your total interest and loan balance. Furthermore, the tool shows the extra cost of deferring payments.

Debt & Credit Analysis

APR Calculator

Find the true annual percentage rate on any loan including all fees. As a result, comparing lenders becomes far more straightforward.

LTV Calculator

Divide your loan amount by the property value to find the LTV ratio. As a result, you can see how lenders will view your mortgage application.

Simple Interest Calculator

Enter principal, rate and time to find total interest earned or owed. Additionally, see the final amount after the interest period ends.

Credit Card Payoff Calculator

Find how long it takes to clear a credit card balance. Additionally, try higher payments to see how much interest you can save.

Debt Avalanche vs Snowball

Compare two debt payoff strategies side by side. Furthermore, the avalanche method saves more interest while the snowball builds momentum.

Debt Consolidation Calculator

See if combining multiple debts into one loan saves money. As a result, you can decide whether consolidation is worth it for your situation.

Debt-to-Income Ratio Calculator

Divide monthly debt payments by gross income to get your DTI ratio. Moreover, lenders use this figure to assess your borrowing capacity.

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Investment & Growth

Return and growth tools for any investment decision. Additionally, compare strategies before committing your capital.

Return & Valuation

ROI Calculator

Divide net gain by the cost of investment to find return on investment. Moreover, use ROI to compare the performance of different opportunities.

CAGR Calculator

Find the true annual growth rate of any investment over any period. Furthermore, use CAGR to compare assets that grew over different timeframes.

IRR Calculator

Enter a series of cash flows to find the internal rate of return. As a result, you can test whether an investment meets your target return.

NPV Calculator

Discount future cash flows back to today to find net present value. Moreover, a positive result means the investment adds value at your chosen rate.

P/E Ratio Calculator

Divide share price by earnings per share to find the P/E ratio. Furthermore, use this figure to compare stock valuations across companies.

Payback Period Calculator

Find how many years it takes to recover an investment from cash flows. As a result, you can screen projects quickly before doing deeper analysis.

Rule of 72 Calculator

Divide 72 by your annual return to estimate how long an investment takes to double. Furthermore, use it as a quick mental check on any interest rate.

Growth Projections

Investment Calculator

Project the value of a lump sum or regular investment over time. Furthermore, adjust contributions and return to compare different strategies.

Future Value Calculator

Find what a current sum will be worth after a set number of years. Moreover, adjust the return rate to model different growth scenarios.

Present Value Calculator

Find what a future sum is worth in today's money at a chosen rate. Additionally, this is the foundation of any discounted cash flow model.

SIP Calculator

Enter a monthly contribution and expected return to project SIP growth. Additionally, see how even small regular investments compound into large sums.

SIP Lumpsum Calculator

Combine a one-time amount with monthly contributions to see total growth. Furthermore, compare the effect of front-loading versus spreading your investment.

Lumpsum Calculator

Find the future value of a one-time investment at a given return rate. Additionally, use this tool to plan lump-sum investments in any fund.

Dividend Income Calculator

Estimate annual income from dividends based on shares held and yield. Additionally, see how reinvesting dividends builds wealth over time.

FIRE Calculator

Enter your savings, expenses and expected return to find your FIRE number. Furthermore, see how many years until you can retire early.

Carry Trade Calculator

Find potential profit from borrowing in a low-rate currency to invest in a high-rate one. As a result, you can assess carry trade risk before entering a position.

Interest Rate Parity Calculator

Check whether two currencies satisfy interest rate parity at current rates. Furthermore, see why forward exchange rates differ from spot rates in practice.

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Savings & Retirement

Savings and pension calculators for long-term financial planning. Furthermore, each tool is tailored to a specific savings scheme.

Savings Schemes

PPF Calculator

Find your PPF balance at maturity based on annual contributions. Additionally, see how the tax-free nature of returns boosts the effective yield.

EPF Calculator

Estimate your EPF balance at retirement from salary and contribution rate. Moreover, see how fund growth compounds over a long working career.

NPS Calculator

Project your NPS corpus and monthly pension at your chosen retirement age. Furthermore, adjust contribution amounts to see the impact on your final pension.

ELSS Calculator

Project returns on an ELSS fund investment over the three-year lock-in. Additionally, see how the tax benefit adds to the effective yield.

Recurring Deposit Calculator

Project the maturity value of a recurring deposit from monthly amount and rate. As a result, you can plan RD contributions to meet a specific savings goal.

Post Office Monthly Income Scheme Calculator

Enter your deposit to find the monthly income from this scheme. Furthermore, see total interest earned over the full five-year term.

Atal Pension Yojana Calculator

Find your guaranteed pension under India's Atal Pension Yojana scheme. Furthermore, see how age and contribution amount affect the monthly payout.

Sukanya Samriddhi Yojana Calculator

Find the maturity value of an SSY account based on annual deposits. Moreover, the tool accounts for the long lock-in and current interest rate.

Retirement Planning

Retirement Calculator

Enter savings, monthly contributions and expected return to project your retirement fund. Furthermore, adjust the retirement age to see how timing changes the outcome.

SWP Calculator

See how long a lump sum lasts when you withdraw a fixed amount each month. Furthermore, adjust the withdrawal rate to balance income and longevity.

Private Savings Calculator

Find private savings as disposable income minus consumption. Furthermore, this figure is a key component of national savings and investment identity.

Emergency Fund Calculator

Enter your monthly costs to find your target emergency fund size. Furthermore, choose the number of months of cover you want to hold.

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Business Profitability

Profit, margin and break-even tools for business owners. Moreover, all results appear instantly from your inputs.

Revenue & Sales

Revenue Calculator

Multiply price by quantity to find total revenue, or solve for either input. Additionally, use this tool to model the effect of price changes on income.

Revenue Growth Calculator

Find the percentage change in revenue between two periods. Furthermore, track this metric monthly to see whether sales momentum is building.

Sales Calculator

Enter any two of revenue, units and price to solve for the third. As a result, you can model different sales scenarios quickly.

Sales Margin Calculator

Find gross margin, markup and implied cost price from a selling price. Furthermore, this tool is essential for checking the profitability of each product line.

Gross Margin Calculator

Subtract cost of goods from revenue and express the result as a percentage. Moreover, gross margin shows how efficiently a business produces its output.

Net Income Calculator

Subtract all expenses, interest and tax from revenue to find net income. Additionally, this bottom-line figure is the most complete measure of profitability.

Commission Calculator

Enter sales revenue and a commission rate to find the payout amount. Additionally, model tiered structures to calculate commissions across different brackets.

Month-Over-Month Calculator

Find the percentage change in any metric between two consecutive months. Furthermore, use this to track revenue, traffic or any business number over time.

Margins & Profit

Profit Calculator

Enter revenue and costs to find gross, operating and net profit in one step. As a result, you see where margin is made and where it is lost.

Net Profit Margin Calculator

Express net income as a percentage of total revenue. Moreover, a higher margin means more of each sale becomes profit after all costs.

Operating Margin Calculator

Find operating profit as a percentage of revenue. Furthermore, this ratio shows how well a business controls its core operating costs.

EBIT Calculator

Subtract operating costs from revenue to find earnings before interest and tax. Moreover, EBIT shows how profitable core operations are before financing effects.

EBITDA Calculator

Add back depreciation to operating profit to find EBITDA. Furthermore, this metric lets you compare companies regardless of their accounting methods.

EBITDA Margin Calculator

Express EBITDA as a percentage of revenue to measure operating efficiency. Additionally, a higher margin means more of each pound of revenue survives to profit.

EBT Calculator

Find earnings before tax by subtracting interest expenses from EBIT. As a result, you can isolate the effect of financing on pre-tax profitability.

Margin Calculator

Enter cost and selling price to find your gross margin percentage. Additionally, work backwards from a target margin to find the right selling price.

Markup Calculator

Add a percentage markup to your cost to find the selling price. Moreover, convert between markup and margin to avoid common pricing errors.

Markdown Calculator

Find the reduced price and remaining margin after a markdown. Furthermore, enter your cost and original price to check whether the new price still covers your costs.

Margin After Discount

See how offering a discount affects your profit margin. Enter cost price, original price and discount to find the true margin remaining.

Margin + VAT Calculator

Find the selling price that covers both your margin and VAT in one step. Furthermore, this prevents the common error of adding VAT on top of an already-tight margin.

Business Health

Break-Even Calculator

Find the number of units you must sell to cover all costs. As a result, you know the minimum sales target before the business becomes profitable.

Burn Rate Calculator

See how fast your business spends cash each month. Furthermore, the tool shows how long your current funds will last at that rate.

Economic Profit Calculator

Subtract both explicit and implicit costs from revenue. Furthermore, the result reveals true profit after accounting for the cost of your own time and capital.

Accounting Profit Calculator

Subtract all explicit costs from revenue to find accounting profit. Furthermore, this differs from economic profit which also accounts for hidden costs.

Productivity Calculator

Divide output by input to find a productivity ratio for any process. Moreover, tracking this ratio over time reveals efficiency gains or losses.

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Financial Ratios

Financial ratios for analysing company health and risk. Additionally, results update immediately when you change any input.

Liquidity Ratios

Current Ratio Calculator

Divide current assets by current liabilities to test short-term financial health. Additionally, a ratio above one means the business can cover its near-term obligations.

Cash Ratio Calculator

Divide cash and equivalents by current liabilities to find the strictest liquidity test. Furthermore, this ratio excludes all assets that take time to convert to cash.

LCR Calculator

Check whether a bank holds enough liquid assets to survive a 30-day stress event. Moreover, a ratio at or above 100 percent meets the regulatory standard.

NSFR Calculator

Check whether a bank's long-term funding matches its long-term assets. As a result, you can see whether the institution meets its net stable funding ratio requirement.

Net Debt Calculator

Subtract cash from total debt to find net debt. Moreover, net debt is a cleaner measure of financial burden than gross debt alone.

Cash Flow Metrics

Free Cash Flow Calculator

Subtract capital spending from operating cash flow to find free cash flow. Moreover, this is one of the most reliable measures of a business's financial health.

FCFE Calculator

Find free cash flow available to shareholders after all costs and debt payments. Additionally, this figure feeds directly into equity valuation models.

FCFF Calculator

Find free cash flow available to all capital providers before financing effects. Moreover, FCFF is the key input in enterprise value DCF models.

Levered Free Cash Flow Calculator

Find free cash flow after debt repayments to see what equity holders retain. Furthermore, this measure is central to leveraged buyout and equity valuation models.

Unlevered Free Cash Flow Calculator

Find free cash flow before the effects of debt financing. Moreover, this is used to value a business independently of how it is funded.

Operating Cash Flow Calculator

Find cash generated from core business operations. Furthermore, operating cash flow is often a more reliable performance measure than reported net income.

Cash Flow to Debt Ratio Calculator

Divide operating cash flow by total debt to assess repayment capacity. Moreover, a ratio above one means the business generates more cash than it owes each year.

FFO Calculator

Add depreciation back to net income to find funds from operations. Furthermore, FFO is the standard profitability measure for real estate investment trusts.

Efficiency Ratios

Inventory Turnover Calculator

Divide sales by average inventory to find how quickly stock is replaced. As a result, a higher turnover generally means less cash tied up in unsold goods.

Fixed Asset Turnover Ratio Calculator

Divide revenue by net fixed assets to find asset efficiency. Additionally, a higher ratio means the business generates more sales from its property and equipment.

Total Asset Turnover Calculator

Divide revenue by total assets to find overall asset efficiency. Furthermore, this ratio shows how much revenue each pound of assets generates.

Receivables Turnover Ratio Calculator

Divide revenue by average receivables to find how quickly a business collects cash. Moreover, a higher ratio suggests efficient credit control and faster collection.

Working Capital Turnover Ratio Calculator

Divide revenue by working capital to find how efficiently a business uses its short-term funds. As a result, you can see if the business is generating enough sales from its working capital.

Inventory Shrinkage Calculator

Find the value and percentage of stock lost to theft, damage or error. Furthermore, quantifying shrinkage turns an invisible cost into a visible one.

Working Capital & Structure

Working Capital Calculator

Subtract current liabilities from current assets to find working capital. Furthermore, a positive figure means the business can meet its short-term obligations.

Cash Conversion Cycle Calculator

Find how many days it takes to turn raw inventory into collected cash. As a result, you can see how efficiently a business manages its working capital.

DIO Calculator

Find how many days a business holds inventory before selling it. Furthermore, a lower DIO indicates faster stock turnover and better working capital use.

DSO Calculator

Find how long a business takes to collect payment after a sale. As a result, you can spot slow-paying customers and improve cash collection.

DPO Calculator

Find how long a business takes to pay its suppliers. Moreover, a longer DPO keeps cash in the business but must not damage supplier relationships.

Net Operating Assets Calculator

Subtract operating liabilities from operating assets to find NOA. Furthermore, this figure is used to calculate return on invested capital.

Net Operating Working Capital Calculator

Find net operating working capital by subtracting operating current liabilities from operating current assets. Additionally, this is a key input in DCF models and working capital analysis.

Accrual Ratio Calculator

Measure earnings quality by comparing accruals to cash income. Furthermore, a high ratio may suggest that profit is not backed by real cash flow.

Degree of Operating Leverage

Measure how a change in sales affects operating profit. Furthermore, high operating leverage means profits rise fast — but so do losses in a downturn.

Financial Leverage Ratio Calculator

Divide total assets by equity to find how much a company relies on debt. As a result, you can assess the financial risk taken on by shareholders.

Goodwill Calculator

Find goodwill as the premium paid above net assets in an acquisition. Furthermore, this figure sits on the balance sheet and is tested for impairment each year.

Retained Earnings Calculator

Adjust opening retained earnings for net income and dividends to find the closing balance. As a result, you can track how much profit the business has kept over time.

Depreciation Calculator

Enter asset cost, useful life and salvage value to find annual depreciation. Additionally, choose between straight-line and declining balance methods.

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Tax & Payroll

Tax and payroll calculators for the UK, India and UAE. Furthermore, planning your liability early avoids costly surprises.

UK Tax Tools

Capital Gains Tax UK Calculator

Estimate your UK CGT liability when you sell an asset. Furthermore, the tool applies current rates and the annual exempt amount automatically.

National Insurance Calculator UK

Find UK National Insurance contributions for employees and employers. Moreover, results are based on current thresholds and contribution class.

Stamp Duty Land Tax Calculator UK

Estimate stamp duty on a UK property purchase at current thresholds. Furthermore, residential and buy-to-let rates are both covered.

Take Home Pay Calculator UK

Find your UK take-home pay after income tax, National Insurance and pension deductions. As a result, you can plan your monthly budget from your real net income.

Indian Tax Tools

HRA Exemption Calculator

Find your HRA tax exemption under Indian income tax rules. As a result, you can see how much of your rent allowance is free from tax.

TDS Interest Calculator

Find interest owed on late TDS payments under Indian tax rules. Moreover, the tool applies the correct daily rate for the period of delay.

Sales Tax Calculator

Add or remove sales tax from any amount at a chosen rate. Moreover, the tool works in both directions — tax-inclusive and tax-exclusive.

Payroll & Fees

Payslip / Pay Stub Generator

Create a professional payslip with gross pay, all deductions and net pay. Moreover, add employer and employee details and download the document instantly.

PayPal Fee Calculator

Enter a transaction amount to find the PayPal fee and net payout. Furthermore, see the gross amount you need to charge to receive a specific net sum.

Trump Tariff Calculator

Find the tariff cost added to imported goods under US tariff schedules. Furthermore, the tool is useful for businesses sourcing products from affected countries.

UK Coin Weight Calculator

Enter any combination of UK coins to find the total weight. Additionally, useful for banking, vending machines and coin-operated equipment management.

Check Digit Calculator

Validate check digits in barcodes, account numbers and financial codes. As a result, you can verify data integrity before processing any transaction.

Actual Cash Value Calculator

Find an asset's value after depreciation. Moreover, insurers use this figure to determine the fair reimbursement on a claim.

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Economics & Macro

Macroeconomic models for students and researchers. Moreover, each calculator applies the correct academic formula.

GDP & National Output

GDP Calculator

Find GDP using the expenditure, income or production approach. Additionally, understand national output from three different measurement angles.

Real GDP Calculator

Remove inflation from nominal GDP to find real output. Additionally, use real GDP to compare economic performance across different years fairly.

GDP Deflator Calculator

Adjust nominal GDP for price changes to find the GDP deflator. Moreover, this lets you compare economic output across years on a real basis.

GDP Gap Calculator

Find the gap between actual and potential GDP for any economy. Furthermore, a negative gap signals spare capacity while a positive gap suggests overheating.

GDP Growth Rate Calculator

Find the percentage change in GDP between two periods. As a result, you can track economic expansion or contraction clearly and quickly.

GDP Per Capita Calculator

Divide GDP by population to find output per person. Moreover, this widely used measure gives a basic picture of average living standards.

Inflation & Interest Rates

Inflation Calculator

Convert money between any two years using historical inflation data. Additionally, see how the cost of goods has risen or fallen in real terms.

CPI Inflation Calculator

Convert money between years using Consumer Price Index data. Moreover, see the real-terms change in the value of any amount over time.

Real Interest Rate Calculator

Subtract expected inflation from the nominal interest rate to find the real rate. Moreover, the real rate tells you the true return on savings after inflation.

Buying Power Calculator

Adjust a historical sum for inflation to find its value today. Furthermore, this reveals how purchasing power has changed over any period.

Inflation Illusion Breaker

Reveal the real value behind a nominal figure after stripping out inflation. Moreover, use it to check whether a salary rise actually increases your spending power.

Fisher Effect Calculator

Find the Fisher Effect relationship between nominal rates, real rates and inflation. Moreover, use it to understand how inflation expectations are built into interest rates.

Fisher Equation Calculator

Apply the Fisher Equation to convert between nominal and real interest rates. Furthermore, this is a core relationship in both finance and macroeconomics.

Labour & Employment

Unemployment Rate Calculator

Divide unemployed persons by the labour force to find the unemployment rate. Furthermore, track this figure over time to assess labour market conditions.

Natural Rate of Unemployment

Find the baseline unemployment rate consistent with stable inflation. As a result, you can assess how close an economy is to full employment at any time.

Labor Force Participation Rate

Find the share of working-age people who are employed or seeking work. As a result, you can assess how engaged a population is with the labour market.

Okun's Law Calculator

Apply the Okun's Law relationship between GDP growth and unemployment. Furthermore, use it to estimate unemployment changes from output growth forecasts.

Monetary Policy

Taylor Rule Calculator

Apply the Taylor Rule to find the recommended interest rate for an economy. Moreover, the result reflects both the inflation gap and the output gap.

Phillips Curve Calculator

Model the trade-off between inflation and unemployment using the Phillips Curve. As a result, you can analyse the challenges faced by central banks in setting policy.

Reserve Ratio Calculator

Enter the reserve ratio to find the resulting money multiplier. Furthermore, lower reserve requirements allow more lending and a larger money supply.

Money Multiplier Calculator

Find how much the money supply expands from an initial deposit given the reserve ratio. As a result, you can see how central bank reserve requirements affect lending in the economy.

Money Supply Calculator

Find M1, M2 and broader money supply measures from their components. Moreover, understanding money supply helps explain inflation and monetary policy effects.

Velocity of Money Calculator

Divide nominal GDP by the money supply to find how often each unit changes hands. As a result, you can see how actively money is circulating in the economy.

Spending Multiplier Calculator

Find how much total output rises from a given increase in government spending. As a result, you can model the Keynesian multiplier effect on the broader economy.

MPC Calculator

Find the fraction of additional income that goes to consumption rather than saving. Moreover, MPC is a central input in Keynesian economic multiplier models.

MPS Calculator

Find the fraction of additional income that is saved rather than spent. Furthermore, MPS and MPC always add up to one — together they explain the full use of new income.

Trade & Markets

PPP Calculator

Find purchasing power parity between two countries to assess currency valuation. Moreover, a currency above PPP may be overvalued against its fundamentals.

PPP Salary Calculator

Convert a salary from one country to its PPP-adjusted value in another. Furthermore, this gives a clearer picture of real living standards across borders.

Comparative Advantage Calculator

Find which country or firm has a comparative advantage in producing each good. Additionally, the tool applies opportunity cost reasoning to trade analysis.

Interest Rate Parity Calculator

Check whether two currencies satisfy interest rate parity at current rates. Furthermore, see why forward exchange rates differ from spot rates in practice.

Gini Coefficient Calculator

Find the Gini coefficient to measure income inequality in a population. Furthermore, a value of zero means perfect equality and one means total concentration.

Consumer Surplus Calculator

Find consumer surplus as the gap between what buyers pay and what they would willingly pay. Furthermore, this measure captures the benefit buyers gain beyond the market price.

Deadweight Loss Calculator

Find the efficiency loss caused by a tax, subsidy or price control. Furthermore, the result shows the welfare cost of market distortions in clear numerical terms.

Cobb-Douglas Production Function

Model output as a function of capital and labour using the Cobb-Douglas formula. As a result, you can analyse production efficiency and returns to scale.

Cross Price Elasticity Calculator

Find how demand for one good changes when the price of another changes. Moreover, this identifies whether goods are substitutes or complements.

Income Elasticity of Demand Calculator

Calculate how demand for a product changes as consumer income rises or falls. Classify goods as normal, inferior or luxury.

Private Savings Calculator

Find private savings as disposable income minus consumption. Furthermore, this figure is a key component of national savings and investment identity.

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Pricing & Sales

Pricing strategy and inventory tools for smarter sales. Additionally, data-driven pricing protects your margin on every deal.

Pricing Strategy

Discount Calculator

Find the final price, saving and effective percentage on any discount. Furthermore, enter any two values to solve for the third instantly.

Multi-Discount Calculator

Apply two or more discounts in sequence and find the true combined saving. Moreover, this prevents the common error of adding percentage discounts together directly.

Cash Back Calculator

Enter spending and reward rate to find the cash back you will earn. As a result, you can see whether a reward card offers genuine value for your spending.

Optimal Price Calculator

Find the profit-maximising price using elasticity and marginal cost. As a result, you can set prices based on economic reasoning rather than guesswork.

Black Friday Calculator

Find the real saving and final price on any Black Friday deal. Moreover, compare multiple offers side by side to find the best value.

Marginal Cost Calculator

Find the extra cost of producing one more unit of output. Moreover, compare marginal cost to price to see whether each additional unit is profitable.

Marginal Revenue Calculator

Find the extra revenue from selling one more unit. As a result, you can identify the point where producing more stops being worthwhile.

Average Variable Cost Calculator

Divide total variable costs by output to find the average variable cost per unit. Furthermore, this figure is essential for pricing decisions and break-even analysis.

Inventory Management

Sell-Through Rate Calculator

Divide units sold by units available to find the sell-through rate. Furthermore, this retail metric shows how quickly a product moves off the shelf.

Stock Cover Days Calculator

Find how many days current stock will last based on average daily sales. Moreover, this helps you reorder in time to avoid stockouts.

Inventory Shrinkage Calculator

Find the value and percentage of stock lost to theft, damage or error. Furthermore, quantifying shrinkage turns an invisible cost into a visible one.

Inventory Turnover Calculator

Divide sales by average inventory to find how quickly stock is replaced. As a result, a higher turnover generally means less cash tied up in unsold goods.

Ending Inventory Calculator

Find the value of stock remaining at the end of a period. Moreover, choose from FIFO, LIFO or weighted average to match your accounting method.

EOQ Calculator

Find the order quantity that minimises total inventory costs. Furthermore, the Economic Order Quantity balances ordering costs against holding costs.

LIFO Calculator

Value inventory using the last-in, first-out accounting method. As a result, you can see how LIFO affects reported profit when prices are rising.

Reorder Point & Safety Stock Calculator

Find the stock level at which you should place a new order. Moreover, the tool also calculates safety stock to protect against demand spikes.

Month-Over-Month Calculator

Find the percentage change in any metric between two consecutive months. Furthermore, use this to track revenue, traffic or any business number over time.

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Business Documents

Professional document generators for everyday business paperwork. Furthermore, all files are created locally — nothing is uploaded.

Sales & Payment Documents

Invoice Generator

Build a professional invoice with your business details, line items and payment terms. Furthermore, download it instantly and send directly to your client.

Receipt Generator

Create a professional receipt for any sale with itemised amounts and payment method. Furthermore, both digital and printable versions are available to download.

Credit Note Generator

Create a professional credit note to correct or cancel a previous invoice. Furthermore, download a clean document ready for your records and the customer.

Quotation Generator

Produce a professional sales quotation with client details, pricing and validity date. Moreover, download it and send it to prospects in seconds.

Quote Generator

Build a detailed customer quote with itemised lines, discounts and totals. Additionally, download or print the document without any specialist software.

Operations & HR Documents

Purchase Order Generator

Generate a purchase order with vendor details, item lines and delivery terms. Furthermore, send it to suppliers immediately without any procurement software.

Delivery Note Generator

Generate a formatted delivery note listing items dispatched to a customer. As a result, both you and the recipient have a clear record of the shipment.

Packing List Generator

Create a full packing list for international shipments with quantities and weights. As a result, customs and receiving teams have a clear record of the contents.

Shipping Label Generator

Generate a formatted shipping label with sender, recipient and item details. As a result, packages are correctly labelled and ready for dispatch.

Payslip / Pay Stub Generator

Create a professional payslip with gross pay, all deductions and net pay. Moreover, add employer and employee details and download the document instantly.

Expense Claim Generator

Create an itemised expense report with categories and totals. Moreover, download and submit it for reimbursement without any specialist software.

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Real Estate

Property investment and rental yield tools for landlords. Moreover, analyse any property before committing capital to it.

Property Investment Tools

Cap Rate Calculator

Divide net operating income by property value to find the cap rate. Furthermore, use it to compare different investment properties on an equal footing.

Rental Property Cash Flow Calculator

Find monthly and annual cash flow from a rental property after all costs. Moreover, this includes mortgage, maintenance, insurance and vacancy allowance.

Rental Yield Calculator

Find gross and net rental yield on any property investment. As a result, you can compare returns across properties before committing to a purchase.

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Currency & Trade

Foreign exchange tools for cross-border transactions. Additionally, forward rate tools help remove exchange rate uncertainty.

Currency Tools

Currency Converter

Convert any amount between major currencies at current rates. Furthermore, useful for travel budgeting and assessing cross-border transaction costs.

Currency Forward Calculator

Find the forward exchange rate for a future currency transaction. Moreover, use this to understand the cost of locking in a rate for hedging purposes.

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Finance Tools for Every Level

Finance is not only for professionals. It affects anyone who earns money, takes a loan or saves for a goal. Furthermore, a wrong financial decision often costs money for many years.

These tools give fast, clear answers to specific financial questions. Each one handles a single calculation well. Moreover, results appear immediately from the numbers you enter.

Nothing is uploaded and nothing is stored. Your data stays entirely on your own device. Additionally, no registration is ever required to access any tool on this page.

Common Questions

Yes, every tool is completely free. No sign-up is needed and no credit card is required. Furthermore, the entire collection is open to everyone.
No data is ever stored. All calculations run locally in your browser. As a result, your numbers never reach any server.
Start with the Home Loan EMI Calculator for your monthly payment. Then check the Amortization Schedule Calculator for the full plan. Additionally, use the LTV Calculator before speaking to a lender.
NPV shows the value of future cash flows in today's money. IRR, however, finds the rate at which NPV equals zero. Together, both tools give you a complete investment view.
Yes, every tool is mobile-friendly. Phones, tablets and desktops all work without any app or download. Furthermore, calculations run locally on your device.