US gallons to UK gallons – convert gal US to gal UK
Convert US gallons to UK gallons (gal US to gal UK) so you can compare fuel economy, tank sizes, brewing recipes and water usage across US and Imperial units. This page opens the main volume converter with galUS → galUK pre-selected.
Open the interactive US gal → UK gal converter:
Use main converter (US gal → UK gal) or switch to UK gal → US galThe homepage also converts litres, cubic metres and both US and UK gallons.
Quick reference: US gallons to UK gallons
One US gallon is about 0.832674 UK gallons, so: galUK = galUS × 0.832674. Examples:
| Volume (US gallons) | Volume (UK gallons, approx.) |
|---|---|
| 1 US gal | 0.83 UK gal |
| 5 US gal | 4.16 UK gal |
| 10 US gal | 8.33 UK gal |
| 20 US gal | 16.65 UK gal |
| 50 US gal | 41.63 UK gal |
Why convert US gallons to UK gallons?
US gal to UK gal is useful when you:
- Compare car fuel economy figures from US and UK sources.
- Adapt brewing or cooking recipes between US and British usage.
- Understand tank, drum or barrel volumes specified in different gallon types.
- Work with international energy or water usage reports.
Other volume converters on this site
US gallons are based on US customary units, while UK gallons come from the Imperial system. This converter keeps the two straight so you do not have to.
Page last updated: 11 December 2025.