Density
Convert pound per US gallon (lb/US gal) to pound per cubic foot (lb/ft³). Density is mass per unit volume — it links volumetric and mass flow, sets hydrostatic head, and drives pump and relief calculations.
1 lb/US gal = 7.48052 lb/ft³
To convert pound per US gallon to pound per cubic foot, multiply the lb/US gal value by 7.48052. To go the other way, divide by 7.48052 (or multiply by 0.1336806).
| lb/US gal | lb/ft³ |
|---|---|
| 1 | 7.48052 |
| 2 | 14.96104 |
| 5 | 37.4026 |
| 10 | 74.8052 |
| 25 | 187.013 |
| 50 | 374.026 |
| 100 | 748.052 |
| 250 | 1870.13 |
| 500 | 3740.26 |
| 1000 | 7480.52 |
Liquid densities are quoted in kg/m³ or as specific gravity; gas densities are much smaller and pressure-dependent.
Density converts a volumetric flow to a mass flow and vice versa — the single most common bridge in a material balance.
Worked example. A density of 8.345404 lb/US gal is 62.42796 lb/ft³.
Multiply the value in lb/US gal by 7.48052 to get lb/ft³. For example, 10 lb/US gal = 74.8052 lb/ft³.
1 lb/US gal equals 7.48052 lb/ft³.
Liquid densities are quoted in kg/m³ or as specific gravity; gas densities are much smaller and pressure-dependent.