Gallon US to Gallon Imperial Converter

1 Gallon US = 0.83267418462898886736 Gallon Imperial
Gallon US (US gal) ➜ Gallon Imperial (imp gal)
 
US gal

Gallon US vs Gallon Imperial Comparison Chart

Source - Gallon USTarget - Gallon Imperial

Gallon US (US gal) - Definition and Overview

What is Gallon US?

A US Gallon is defined as 231 cubic inches or approximately 3.78541 liters. The US gallon is used for measuring liquid volume in United States and some Latin American and Caribbean countries.

Summary

  • The US gallon is a unit of volume that is commonly used in the United States and some Latin American and Caribbean countries to measure the volume of liquids, such as gasoline, milk, and water
  • It is also used in the brewing and distilling industries to measure the volume of beer and spirits
  • The US gallon is a convenient unit of volume because it is easy to convert to other units of volume, such as liters and cubic inches.

Gallon Imperial (imp gal) - Definition and Overview

What is Gallon Imperial?

An Imperial Gallon is defined as 4.54609 liters or approximately 277.42 cubic inches. The Imperial gallon is primarily used in the United Kingdom and some other Commonwealth countries.

Summary

  • The Imperial gallon is a unit of volume that is commonly used in the United Kingdom and some other Commonwealth countries to measure the volume of liquids, such as gasoline, milk, and water
  • It is also used in the brewing and distilling industries to measure the volume of beer and spirits
  • The Imperial gallon is a convenient unit of volume because it is easy to convert to other units of volume, such as liters and cubic inches.

How to Convert Gallon US to Gallon Imperial?

1 Gallon US is equal to 0.83267418462898886736 Gallon Imperial. To convert Gallon US to Gallon Imperial, use this simple formula:

Gallon Imperial = Gallon US x 0.83267418462898886736

So, just multiply the number of Gallon US by 0.83267418462898886736 to get equivalent value in Gallon Imperial.

Example 1:

Convert 5 Gallon US to Gallon Imperial
5 x 0.83267418462898886736 = 4.1633709231449443368 Gallon Imperial

Example 2:

Convert 7.5 Gallon US to Gallon Imperial
7.5 x 0.83267418462898886736 = 6.2450563847174165052 Gallon Imperial

Author Information

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Rajesh V U

Full-Stack Developer & Storage Technologist | Creator of UnitSmash.com
Last updated: June 1, 2026

I am a Storage Technologist with strong experience in enterprise storage systems, Angular development, and web-based tools. I enjoy building practical calculators, converters, and utilities, and I also create original cartoons. I share my tools, articles, and creative work on my personal website, rajeshvu.com.

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