Density, Mass, Volume Calculator
Use our density mass volume calculator to calculate density from mass and volume, or solve for mass or volume using the density formula. Includes what density is, the density calculation formula, and a step-by-step guide with examples.
What Is Density
Density describes how much mass is packed into a given volume. In simple terms: how heavy something is for its size.
Common density units include kg/m³, g/cm³, or g/mL. As long as your mass and volume units match, the density calculation works the same way.
This density mass volume calculator lets you calculate density, mass, or volume using the same core relationship.
Density, Mass, and Volume Formula
Density is mass divided by volume. You can rearrange the formula to solve for mass or volume.
ρ (rho) is the common symbol for density.
Use this if you know density and volume.
Use this if you know mass and density.
A straightforward calculate density from mass and volume example.
How to Calculate Density
- 1
Choose what you want to solve for: density, mass, or volume.
- 2
Enter the two known values (mass and volume, or density and one of the others).
- 3
Make sure your units are compatible (for example, grams with mL, or kilograms with m³).
- 4
The calculator applies the correct rearranged formula.
Frequently Asked Questions
Use density = mass ÷ volume. Example: 50 g ÷ 25 mL = 2 g/mL.
Measure mass with a scale and measure volume (by geometry for regular objects, or by water displacement for irregular objects). Then compute density as mass ÷ volume.
Find the object’s mass and volume, then divide: density = mass ÷ volume. For irregular shapes, volume is often found by displacement.
The density formula is ρ = m ÷ V. Rearranged: m = ρV and V = m ÷ ρ.
This calculator handles the density/mass/volume relationship. If you need unit conversions (like g/cm³ to kg/m³), convert units first or use a dedicated unit converter.
Any consistent units work. For example: grams with mL gives g/mL, grams with cm³ gives g/cm³, and kilograms with m³ gives kg/m³.