How Many Imperial Gallons in a US Gallon?

Quick Answer
1 US Gallon = 0.833 Imperial Gallons

1 gal = 0.833 imp gal

Formula

imp gal = gal × 0.833

Conversion Table

US Gallons (gal)Imperial Gallons (imp gal)
1 gal0.833 imp gal
2 gal1.665 imp gal
5 gal4.163 imp gal
10 gal8.327 imp gal
20 gal16.654 imp gal
50 gal41.634 imp gal
100 gal83.267 imp gal
500 gal416.337 imp gal
1,000 gal832.674 imp gal

Worked Examples

Convert 5 gal to imp gal:
5 gal × 0.833 = 4.163 imp gal
Convert 10 gal to imp gal:
10 gal × 0.833 = 8.327 imp gal
Convert 50 gal to imp gal:
50 gal × 0.833 = 41.634 imp gal

FAQ

How many Imperial Gallons are in 1 US Gallon?
There are 0.833 Imperial Gallons in 1 US Gallon. Formula: imp gal = gal × 0.833.
How to convert US Gallons to Imperial Gallons?
To convert US Gallons to Imperial Gallons, multiply the number of US Gallons by 0.833. For example, 10 gal = 8.327 imp gal.
How many Imperial Gallons are in 100 US Gallons?
There are 83.267 Imperial Gallons in 100 US Gallons. Calculation: 100 × 0.833 = 83.267.