To convert from US pints or gallons to imperial pints or gallons, multiply by 0.83267.

Example: 10 US gallons x 0.83267 = 8.3267 imperial gallons


To convert from imperial pints or gallons to US pints or gallons, multiply by 1.20095.

Example: 10 imperial gallons x 1.20095 = 12.0095 US gallons