Kilocalories to Calories Converter kcal → cal
1 kilocalorie (kcal) = 1000 calories (cal). Type a value below — the conversion happens instantly, entirely on your device.
1 kcal = 1000 cal
250 kilocalories = 250000 calories
250 × 1000 = 250000
1 kcal equals 1000 cal, so multiplying by 1000 converts the value. The result describes the exact same quantity — only the measuring stick changes.
How to convert kilocalories to calories
calories = kilocalories × 1000 — multiply the kilocalorie value by 1000.
Example: 250 kcal = 250,000 cal.
To convert the other way: kilocalories = calories ÷ 1000 — or use the dedicated cal to kcal converter .
Multiply kilocalories by 1,000 for small calories: 250 kcal is 250,000 cal. The distinction matters in chemistry coursework, where the small calorie (4.184 J) is the working unit.
Kilocalories to Calories conversion table
| Kilocalories (kcal) | Calories (cal) |
|---|---|
| 0.1 | 100 |
| 0.25 | 250 |
| 0.5 | 500 |
| 1 | 1000 |
| 2 | 2000 |
| 3 | 3000 |
| 4 | 4000 |
| 5 | 5000 |
| 6 | 6000 |
| 7 | 7000 |
| 8 | 8000 |
| 9 | 9000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 30 | 30,000 |
| 40 | 40,000 |
| 50 | 50,000 |
| 75 | 75,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
About the units
What is a kilocalorie?
A kilocalorie (kcal) is 4,184 joules — identical to the food "Calorie" (capital C) on US nutrition labels. A 2,000-Calorie diet is 2,000 kcal or 8,368 kJ.
What is a calorie (small)?
A small (gram) calorie (cal) is exactly 4.184 joules — the energy to heat 1 gram of water by 1 °C. Note that food "Calories" are actually kilocalories (1,000 small calories).
Frequently asked questions
How many calories are in 1 kilocalorie?
1 kilocalorie (kcal) = 1000 calories (cal).
What is the formula to convert kilocalories to calories?
calories = kilocalories × 1000 — multiply the kilocalorie value by 1000.
How do I convert kcal to cal without a calculator?
Multiply by 1000 for a close estimate. Exact factor: 1 kcal = 1000 cal.
Is this kcal-to-cal converter accurate and private?
Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.