Convert Pounds per UK gallon to Pounds per US gallon
Convert Pounds per UK gallon (lb/gal (UK)) to Pounds per US gallon (lb/gal (US)) instantly and accurately.
Conversion Formula
lb/gal (US) = lb/gal (UK) × 0.8326741846
About Pounds per UK gallon
The pound per UK gallon (lb/gal UK) equals ≈99.776 kg/m³, based on the avoirdupois pound and the UK gallon (4.54609 L). Used historically in British petroleum refining and Admiralty fuel specifications; the original UK specific-gravity tables reference lb/gal UK. Still encountered in some Commonwealth marine and aviation standards. 1 lb/gal (UK) ≈99.776 kg/m³ ≈6.228 lb/ft³.
About Pounds per US gallon
The pound per US gallon (lb/gal US) equals ≈119.826 kg/m³, the standard density unit in US petroleum refining, drilling, and petrochemical industries. Water at 60°F is 8.337 lb/gal; diesel 6.8-7.3 lb/gal; medium crude oil 7.1-8.0 lb/gal. Drilling mud weight per API RP 13B is specified in lb/gal (US) to control wellbore pressure. 1 lb/gal (US) ≈119.826 kg/m³ ≈7.481 lb/ft³.
Quick Reference Table
| Pounds per UK gallon (lb/gal (UK)) | Pounds per US gallon (lb/gal (US)) |
|---|---|
| 1 lb/gal (UK) | 0.832674 lb/gal (US) |
| 2 lb/gal (UK) | 1.66535 lb/gal (US) |
| 5 lb/gal (UK) | 4.16337 lb/gal (US) |
| 10 lb/gal (UK) | 8.32674 lb/gal (US) |
| 25 lb/gal (UK) | 20.8169 lb/gal (US) |
| 50 lb/gal (UK) | 41.6337 lb/gal (US) |
| 100 lb/gal (UK) | 83.2674 lb/gal (US) |