⚛Science calculator

Density Calculator

Density from mass and volume.

Enter mass and volume and get density (g/cm³) and density (kg/m³) instantly.

InMassInVolumeOutDensity (g/cm³)OutDensity (kg/m³)
2 inputs2 resultsFree no signupPrivate in your browser

Density Calculator

Fill in the values and the answer updates as you type.

Live
1 Your numbers
g
cm³
2 Your result

How the Density Calculator works

Density = mass ÷ volume. 1 g/cm³ equals 1,000 kg/m³. Water is about 1 g/cm³.

Inputs and results

The Density Calculator takes 2 inputs and gives 2 results.

What you enter

  • Mass (g) — starts at 250.
  • Volume (cm³) — starts at 100.

What you get

  • Density (g/cm³)
  • Density (kg/m³)

Example: Density Calculator with the starting values

With mass 250 g and volume 100 cm³, the calculator returns:

Example results
Density (g/cm³)2.5
Density (kg/m³)2,500

Change any value above and the results update straight away.

Density Calculator FAQ

How do I use the Density Calculator?

Enter mass and volume in the fields, then read density (g/cm³) and density (kg/m³) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.

What does the Density Calculator calculate?

Density from mass and volume. It returns density (g/cm³) and density (kg/m³) from the 2 values you provide.

What values does the Density Calculator start with?

It opens with mass 250 g and volume 100 cm³ so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.

Is the Density Calculator free and private?

Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.

Can I rely on the Density Calculator for important decisions?

Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.