🪨 Density Calculator
Solve density, mass or volume from ρ = m/V — enter any two and get the third.
Density (ρ)
0.787402 g/mL
Density = mass ÷ volume (ρ = m/V). 🔒 Computed in your browser.
How the density calculator works
Density is mass per unit volume: ρ = m/V. Enter any two of density, mass and volume and the tool solves for the third; keep units consistent (g and mL give g/mL).
A staple across chemistry and physics — identify a substance, convert between mass and volume, or check purity, all from mass ÷ volume.
Frequently asked questions
How do you calculate density?
Divide mass by volume: ρ = m/V. 10 g in 12.7 mL gives 0.787 g/mL. Enter mass and volume and the tool computes it.
How do I find mass or volume from density?
Rearrange: mass = density × volume, and volume = mass ÷ density. Pick which to solve for and enter the other two.
What units does density use?
Commonly g/mL or g/cm³ (they are equal). Use consistent units — grams with millilitres gives g/mL.
What is the density of water?
About 1.00 g/mL at 4 °C, which is why water is a convenient reference. Density varies slightly with temperature.
Is my calculation private?
Yes — it runs entirely in your browser.