Density Converter
Kilogram/m³
Definition: The kilogram per cubic meter (symbol: kg/m³ or kg·m⁻³) is the SI derived unit of density. It is defined by mass in kilograms divided by volume in cubic meters.
History/origin: This unit naturally emerged from the International System of Units (SI) as the standard for measuring the volumetric mass density of any substance.
Current use: It is the absolute standard unit used worldwide in physics, fluid mechanics, aerodynamics, and general engineering to express the density of liquids, solids, and gases.
Pound/ft³
Definition: The pound per cubic foot (symbol: lb/ft³) is an imperial and US customary unit of density. It is defined as one pound of mass per cubic foot of volume.
History/origin: This unit is derived from the historic avoirdupois pound and the international foot, which were the standard weights and measures in the British Empire.
Current use: It is predominantly used in the United States and the UK for construction, civil engineering, and HVAC (heating, ventilation, and air conditioning) to calculate the density of concrete, wood, and air.
Kilogram/m³ to Pound/ft³ Conversion Table
| Kilogram/m³ [kgm3] | Pound/ft³ [lbft3] |
|---|---|
| 0.01 kgm3 | 0.00062428 lbft3 |
| 0.1 kgm3 | 0.0062428 lbft3 |
| 1 kgm3 | 0.06242796 lbft3 |
| 2 kgm3 | 0.12485592 lbft3 |
| 3 kgm3 | 0.18728389 lbft3 |
| 5 kgm3 | 0.31213981 lbft3 |
| 10 kgm3 | 0.62427962 lbft3 |
| 20 kgm3 | 1.24855924 lbft3 |
| 50 kgm3 | 3.1213981 lbft3 |
| 100 kgm3 | 6.2427962 lbft3 |
| 1000 kgm3 | 62.42796203 lbft3 |
How to Convert Kilogram/m³ to Pound/ft³
1 kgm3 = 0.06242796 lbft3
1 lbft3 = 16.018463 kgm3
Example: convert 15 kgm3 to lbft3:
15 kgm3 = 15 × 0.06242796 lbft3 = 0.93641943 lbft3
Did You Know?
- Did you know? Pure water has a density of exactly 1,000 kg/m³ at 4°C. Anything with a density lower than this will float on water, and anything higher will sink!
- The density of Earth's atmosphere at sea level is approximately 0.0765 lb/ft³ (1.225 kg/m³). It might seem light, but the total weight of the atmosphere is about 5.5 quadrillion tons!