Density Calculator
Calculate density, mass, or volume (ρ = m/V)
Calculator
ρ = m / V = 1000 kg / 1 m³ = 1000.0000 kg/m³
Density in g/cm³
1.0000
Volume in Liters
1000.00
Density Formula
- ρ = m / V (Density = Mass / Volume)
- m = ρ × V (Mass = Density × Volume)
- V = m / ρ (Volume = Mass / Density)
- 1 g/cm³ = 1000 kg/m³
- Water density: 1000 kg/m³ (1 g/cm³)
How to Use
Calculate density, mass, or volume using the density formula
Choose calculation
Select to calculate density, mass, or volume
Enter values
Input the two known values (or use material presets)
View result
See the calculated value with comparison to common materials
Density Formula
density = m / V
Density equals Mass divided by Volume.
Frequently Asked Questions
Density is mass per unit volume, calculated as density = m/V. It tells you how tightly matter is packed. Water has a density of 1 g/cm cubed (1000 kg/m cubed). Objects with density less than water float; denser objects sink.
Water: 1 g/cm cubed, Air: 0.0012 g/cm cubed, Iron: 7.87 g/cm cubed, Aluminum: 2.7 g/cm cubed, Gold: 19.3 g/cm cubed, Lead: 11.3 g/cm cubed, Wood (oak): 0.6-0.9 g/cm cubed. These help identify materials and predict floating/sinking behavior.
Rearrange the formula to V = m/density. Divide mass by density. For example, 500g of aluminum (density 2.7 g/cm cubed) has volume of 500/2.7 = 185 cm cubed. This is useful for calculating space needed or container sizes.
Density determines if things float or sink, helps identify unknown materials, is crucial for shipping weight calculations, affects structural engineering, and matters in cooking (oil floats on water). It is also used to measure purity - fake gold has wrong density.