Converters
Density Converter
Pick a 'from' unit and a 'to' unit, enter a value, and the converter returns the value in every common density unit. Useful for chemistry, materials, and bulk-material work.
Water at room temperature is about 1,000 kg/m³ (1 g/mL). · e.g. 1000
Internal base unit is kg/m³. Each conversion goes through kg/m³, so accuracy is consistent across pairs.
Kilogram per cubic meter → Pound per cubic foot
62.428 lb/ft³
1,000 (from) = 62.428 (to)
1 g/cm³ = 1 g/mL = 1,000 kg/m³. 1 lb/ft³ ≈ 16.018 kg/m³. 1 lb/in³ ≈ 27,679.9 kg/m³. 1 lb/gal US ≈ 119.83 kg/m³.
Examples
Water 1,000 kg/m³
= 1 g/cm³ ≈ 62.43 lb/ft³
Steel 7,850 kg/m³
≈ 7.85 g/cm³; 490 lb/ft³
Hot mix asphalt ≈ 2,322 kg/m³
≈ 145 lb/ft³
Gold 19,320 kg/m³
≈ 19.32 g/cm³; 698.4 lb/in³
How it works
Each density unit is defined by its size relative to kg/m³. The converter multiplies the input by the source factor, then divides by the target factor.
Metric · 1 g/cm³ = 1 g/mL = 1,000 kg/m³
Imperial · 1 lb/ft³ ≈ 16.018 kg/m³; 1 lb/in³ ≈ 27,680 kg/m³
Related calculators
- Weight converter for mass-only units (mg, g, kg, t, oz, lb, stone, tons).
- Volume converter for the volume side (L, mL, m³, gallons, cubic feet).
- Sand calculator when density combines with depth to estimate bulk weight.
- Topsoil calculator for soil density and yardage planning.
- Asphalt calculator for paving where hot-mix density drives tonnage.
- All converters.
Frequently asked questions
Density is mass per unit volume. The SI base unit is kg/m³. 1 g/cm³ equals 1,000 kg/m³, and water at room temperature is right around that value, so g/cm³ and kg/m³ are both common in chemistry and materials.
Yes. 1 mL is defined as 1 cm³, so 1 g/mL = 1 g/cm³ exactly. Both equal 1,000 kg/m³.
Water ≈ 1,000 kg/m³ (1 g/cm³). Aluminum ≈ 2,700 kg/m³. Steel ≈ 7,850 kg/m³. Concrete ≈ 2,400 kg/m³. Dry sand ≈ 1,600 kg/m³. Topsoil ≈ 1,200 kg/m³.
Many US trade products are quoted in lb/ft³ or lb/gal (paint, asphalt, concrete additives). The conversions let you compare with metric data sheets without doing the unit math by hand.
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