Density Calculator
Calculate density, mass, or volume using D = M/V. Supports multiple units for mass and volume with automatic conversions.
About the Density Calculator
Density is a fundamental physical property that describes how much mass is contained in a given volume (D = M/V). This calculator lets you solve for any one of the three variables—density, mass, or volume—when the other two are known. It supports a wide range of units, making it useful for chemistry, physics, engineering, and everyday tasks. For related chemistry calculations, try our Molarity Calculator to determine solution concentrations.
Understanding density is key to identifying materials and predicting behavior in fluids—objects less dense than water float, while denser objects sink. For example, ice (0.92 g/cm³) floats on water (1.00 g/cm³). If you need to find the molar mass of a compound to use alongside density calculations, check out our Molecular Weight Calculator.
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For a related calculation, use Speed Calculator to solve for speed, distance, or time with S = D/T. Supports mph, km/h, m/s, knots, and more. Alternatively, use Horsepower Calculator to convert between horsepower, kilowatts, torque, and RPM. Supports three calculation modes.