Everyday Tools

Density Calculator

Find density by dividing mass by volume. The result is expressed in kilograms per cubic meter and describes how much mass occupies each unit of volume under the entered conditions.

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Your inputs

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Your result

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Using the Density Calculator

Enter mass in kilograms and volume in cubic meters. Volume must be greater than zero. For a sample with pores or gaps, decide whether the measured volume includes those spaces, because that choice changes whether the result resembles a bulk or material density.

Worked example

Use the example inputs below to reproduce this result. These are the form's starting values, not recommended targets. Changing your inputs updates your result above; this worked example stays fixed for comparison. Results are rounded for display.

Example inputs

Mass (kg)
10
Volume (m³)
0.01

Example result

Density (kg/m³)
1,000

Method and assumptions

Density = mass / volume.

Carry the units through the formula

Writing the units beside the numbers is a useful way to check a physical calculation. Kilograms divided by cubic meters gives density; meters divided by seconds gives speed. If the units do not combine into the quantity you expect, convert the inputs first. Keep rounding until the final step when using the answer in another calculation.

Common question

Does the result identify the material?

No. Different materials or mixtures can have similar densities, and temperature or measurement conditions can affect the value. Density can be one useful property for comparison, but this calculator does not perform material identification.