Density
Pound per Cubic Foot to Pound per Cubic Inch Converter
Convert Pound per Cubic Foot to Pound per Cubic Inch with the exact formula, a worked example and a quick conversion table.
Smart input
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Quick values:
Conversion formula
The exact formula applied:
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Conversion formula
lb/in³ = lb/ft³ ÷ 1728
lb/ft³ = lb/in³ × 1728
Worked example
1 lb/ft³ = 0.0005787037 lb/in³
lb/in³ = lb/ft³ ÷ 1728
Density = mass ÷ volume. Water is ≈ 1000 kg/m³ and reinforced concrete ≈ 2500 kg/m³.
Quick conversion table
| Pound per Cubic Foot (lb/ft³) | Pound per Cubic Inch (lb/in³) |
|---|---|
| 0.001 | 5.787 × 10⁻⁷ |
| 0.01 | 0.000005787 |
| 0.1 | 0.0000578704 |
| 1 | 0.0005787037 |
| 10 | 0.005787 |
| 100 | 0.0578704 |
| 1,000 | 0.5787037 |
Reverse conversion table
| Pound per Cubic Inch (lb/in³) | Pound per Cubic Foot (lb/ft³) |
|---|---|
| 0.001 | 1.728 |
| 0.01 | 17.28 |
| 0.1 | 172.8 |
| 1 | 1,728 |
| 10 | 17,280 |
| 100 | 172,800 |
| 1,000 | 1,728,000 |
About the two units
lb/ft³Pound per Cubic Foot
One lb/ft³ = 16.0185 kg/m³.
1 lb/ft³ = 16.018463374 kg/m³
Non-SI Unit Density
lb/in³Pound per Cubic Inch
One lb/in³ = 27,679.9 kg/m³.
1 lb/in³ = 27679.9047102 kg/m³
Non-SI Unit Density
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Common engineering conversions
Megapascal ↔ Pound per Square InchMegapascal ↔ BarKilogram-force per square centimetre ↔ MegapascalPound per Square Inch ↔ BarMPa = N/mm² (identical)Kilonewton ↔ NewtonKilonewton ↔ Kilogram-forceCubic Meter ↔ Cubic FootSquare Meter ↔ Square FootKilogram per Cubic Meter ↔ Pound per Cubic FootMillimeter ↔ InchCentimeter ↔ InchMeter ↔ FootNewton-metre ↔ Pound-force-footCubic Meter per Second ↔ Cubic Meter per Hour