Density Calculator (Mass / Volume)
Find density instantly using the formula ρ = mass / volume. Enter mass in grams and volume in cm³ to get the result in g/cm³.
Enter mass and volume to calculate density.
How it works
What is density?
Density is how much mass is packed into a given volume. It is defined by the formula ρ = mass / volume, where ρ (rho) is density.
When mass is in grams and volume is in cm³, the density comes out in g/cm³, a common unit in physics and chemistry.
Why density matters
Density helps identify materials, predict whether an object floats or sinks, and compare substances. Water, for example, has a density of about 1 g/cm³.
Engineers, scientists, and students use density to analyze materials and verify the purity of samples.
Frequently asked questions
›What is the density formula?
Density equals mass divided by volume: ρ = m / V. With grams and cm³, the result is in g/cm³.
›What units does this calculator use?
Mass is entered in grams (g), volume in cubic centimeters (cm³), and the result is in g/cm³.
›What is the density of water?
Pure water has a density of about 1 g/cm³ at 4 °C, which makes it a useful reference point.
›How do I convert g/cm³ to kg/m³?
Multiply the value in g/cm³ by 1000. For example, 1 g/cm³ equals 1000 kg/m³.
›Can density be less than 1?
Yes. Materials lighter than water, such as wood or oil, have densities below 1 g/cm³ and float on water.
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