How do you convert imperial gallons to us gallons?

Enter the imperial gallons value in the input field above and the calculator instantly shows the result in us gallons. The step-by-step formula and a worked example are displayed below the converter.

What is the formula to convert imperial gallons to us gallons?

The exact conversion formula for imperial gallons to us gallons is shown in the 'How to Convert' section on this page, along with a reference table of common values.

Can I convert us gallons back to imperial gallons?

Yes. Click the swap button (⇄) between the two fields to reverse the direction. You can then enter a us gallons value and get the equivalent in imperial gallons.

Volume Converter

Imperial Gallon to US Gallon Conversion

Please provide values below to convert imperial gallon [imp gal] to us gallon [gal], or vice-versa.

Imperial Gallon (imp gal)

imp gal

US Gallon (gal)

gal

Result

How to Convert Imperial Gallon to US Gallon

Formula

What is a Imperial Gallon?

What is a US Gallon?

Imperial Gallon to US Gallon Conversion Table

Reference Values

Imperial Gallon [imp gal]	US Gallon [gal]

Other Volume Conversions

L → mL mL → L L → gal gal → L L → m³ m³ → L gal → fl oz fl oz → mL cup → mL tbsp → mL tsp → mL ft³ → L