Pounds per cubic foot to pounds per US gallon
Type a value in pounds per cubic foot to see it in pounds per US gallon straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the pounds per cubic foot box.
- Read the result in pounds per US gallon as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
lb/gal (US) = lb/ft³ × 0.1336805556
Multiply the value in pounds per cubic foot by 0.1336805556 to get pounds per US gallon.
Example
To convert 25 lb/ft³ to pounds per US gallon: 25 × 0.1336805556 = 3.34201 lb/gal (US).
Conversion table
| Pounds per cubic foot (lb/ft³) | Pounds per US gallon (lb/gal (US)) |
|---|---|
| 1 | 0.133681 |
| 2 | 0.267361 |
| 3 | 0.401042 |
| 5 | 0.668403 |
| 10 | 1.33681 |
| 20 | 2.67361 |
| 25 | 3.34201 |
| 50 | 6.68403 |
| 100 | 13.3681 |
| 250 | 33.4201 |
| 500 | 66.8403 |
| 1,000 | 133.681 |
About the units
- Pound per cubic foot
- A US and imperial unit: one pound (0.45359237 kg) in one cubic foot (0.028316846592 m³), about 16.0185 kg/m³.
- Pound per US gallon
- One pound in one US gallon (3.785411784 L), about 119.826 kg/m³, used for drilling mud, paint and fuel.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many pounds per US gallon are in one pound per cubic foot?
1 lb/ft³ = 0.133681 lb/gal (US) exactly.
How do I convert pounds per cubic foot to pounds per US gallon?
Use lb/gal (US) = lb/ft³ × 0.1336805556. For example, 25 lb/ft³ = 3.34201 lb/gal (US).
How many pounds per cubic foot are in one pound per US gallon?
1 lb/gal (US) = 7.48052 lb/ft³.
How do I find the weight of a liquid from its density?
Multiply density by volume in matching units: 2 liters of oil at 0.92 kg/L weigh 1.84 kilograms.
Is the density of water exactly 1 g/cm³?
Nearly: pure water at about 4 °C is close to 0.99997 g/cm³ and gets slightly lighter as it warms. Using 1 g/cm³ is a fine approximation for most purposes.