Marks Calc
8 units

Density Converter

Convert between kg/m³, g/cm³ (= g/mL), lb/ft³, lb/in³ and slug/ft³.

Common density conversions

FromEquivalent
1 kg/m³0.001 g/cm³ · 0.001 g/mL · 0.001 kg/L · 0.062428 lb/ft³ · 3.6127e-5 lb/in³
5 kg/m³0.005 g/cm³ · 0.005 g/mL · 0.005 kg/L · 0.31214 lb/ft³ · 0.000181 lb/in³
10 kg/m³0.01 g/cm³ · 0.01 g/mL · 0.01 kg/L · 0.62428 lb/ft³ · 0.000361 lb/in³
100 kg/m³0.1 g/cm³ · 0.1 g/mL · 0.1 kg/L · 6.242796 lb/ft³ · 0.003613 lb/in³
1000 kg/m³1 g/cm³ · 1 g/mL · 1 kg/L · 62.427962 lb/ft³ · 0.036127 lb/in³

How the conversion works

Density = mass ÷ volume. Conversion is linear once both sides are in compatible SI base units.

When you'll use this converter

  • Chemistry (g/mL for solutions)
  • Civil engineering (concrete density in kg/m³ or lb/ft³)
  • Geology and petroleum
  • Cooking and food science

Frequently asked

Is g/mL the same as g/cm³?

Yes — exactly. 1 mL is defined as 1 cm³, so g/mL and g/cm³ are identical.

What is the density of water?

≈ 1000 kg/m³ = 1 g/cm³ at 4°C. It varies slightly with temperature (and significantly for salt water).