Density Calculator
Calculate density, mass, or volume when any two values are known.
Results
Calculated Value
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Type
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kg/m³
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g/cm³
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lb/ft³
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What is Density?
Density is a measure of mass per unit volume. It describes how tightly matter is packed together and is commonly expressed in kilograms per cubic meter (kg/m³) or grams per cubic centimeter (g/cm³).
How to Use This Calculator
- Enter any two known values: mass, volume, or density.
- Leave the unknown field blank.
- Click "Calculate Missing Value" to solve for the third.
Frequently Asked Questions
What is the formula for density?
Density = Mass / Volume. You can rearrange to find Mass = Density × Volume or Volume = Mass / Density.
What are common density units?
Common units include kg/m³, g/cm³, and lb/ft³. Water has a density of 1 g/cm³ or 1000 kg/m³.
Can density change with temperature?
Yes, most substances expand when heated, which decreases their density. This calculator assumes constant conditions.
Why do I need to enter exactly two values?
Density, mass, and volume are related by a single equation. You need two known values to solve for the third.