Convert Kilograms per cubic metre to Pounds per cubic foot
Convert Kilograms per cubic metre (kg/m³) to Pounds per cubic foot (lb/ft³) instantly and accurately.
Conversion Formula
lb/ft³ = kg/m³ × 0.06242796058
About Kilograms per cubic metre
The kilogram per cubic metre (kg/m³) is the SI coherent derived unit of density. Air at standard sea level is ≈1.225 kg/m³; fresh water at 4°C is ≈999.97 kg/m³; liquid mercury is 13 534 kg/m³; osmium (densest stable element) is 22 590 kg/m³. Used in the continuity equation, Bernoulli's principle, and all SI-based fluid dynamics calculations. 1 kg/m³ = 1 g/L ≈0.06243 lb/ft³.
About Pounds per cubic foot
The pound per cubic foot (lb/ft³) equals ≈16.018 kg/m³, widely used in US construction, soil mechanics, and insulation specifications. Softwood framing lumber averages 25-35 lb/ft³; compacted soil 90-130 lb/ft³; fresh water ≈62.43 lb/ft³; concrete 145-150 lb/ft³. ASTM standards for concrete, soil, and geotextiles routinely cite lb/ft³. 1 lb/ft³ = 0.45359237/0.028316846592 kg/m³ ≈16.018 kg/m³.
Quick Reference Table
| Kilograms per cubic metre (kg/m³) | Pounds per cubic foot (lb/ft³) |
|---|---|
| 1 kg/m³ | 0.062428 lb/ft³ |
| 2 kg/m³ | 0.124856 lb/ft³ |
| 5 kg/m³ | 0.31214 lb/ft³ |
| 10 kg/m³ | 0.62428 lb/ft³ |
| 25 kg/m³ | 1.5607 lb/ft³ |
| 50 kg/m³ | 3.1214 lb/ft³ |
| 100 kg/m³ | 6.2428 lb/ft³ |