Density Calculator

Calculate density, mass, or volume from two known values

Solve For

Common materials (density in kg/m3):
Enter two values to calculate the third

Common Material Densities

MaterialDensity (kg/m3)Density (g/cm3)
Air (sea level)1.2250.001225
Water1,0001.000
Ice9170.917
Wood (Oak)7500.750
Concrete2,4002.400
Aluminum2,7002.700
Steel7,8507.850
Iron7,8747.874
Copper8,9608.960
Lead11,34011.340
Gold19,30019.300

About Density

Density is a measure of how much mass is packed into a given volume. The formula is:

density = mass / volume

The SI unit of density is kg/m3 (kilograms per cubic meter). In everyday use, g/cm3 is also common, where water has a convenient density of exactly 1 g/cm3 at 4 degrees C.

Objects with density less than water (1000 kg/m3) float; objects with higher density sink. This principle is why ships made of steel (density ~7850 kg/m3) float -- their hollow shape means their average density is less than water.

Privacy & Limitations

  • All calculations run entirely in your browser -- nothing is sent to any server.
  • Results are computed using standard formulas and should be verified for critical applications.

Related Tools

Related Tools

View all tools

Density Calculator FAQ

What is Density Calculator?

Density Calculator is a free engineering & physics tool that helps you Calculate density, mass, or volume with common material presets.

How do I use Density Calculator?

Enter your input values, review the calculated output, and adjust inputs until you reach the result you need. The result updates in your browser.

Is Density Calculator private?

Yes. Calculations run locally in your browser. Inputs are not uploaded to a server by default, and refreshing the page clears session data.

Does Density Calculator require an account or installation?

No. You can use this tool directly in your browser without sign-up or software installation.

How accurate are results from Density Calculator?

This tool applies standard formulas or deterministic processing logic for estimates. For medical, legal, tax, or investment decisions, verify with a qualified professional.

Can I save or share outputs from Density Calculator?

You can bookmark this page and copy outputs manually. Results are not persisted in your account and are typically not embedded in the URL.

Request a New Tool
Improve This Tool