Convert Imperial Gallons (imp gal) to US Gallons (gal)

Converting Imperial Gallons (imp gal) to US Gallons (gal) is essential for various applications, from cooking to transportation. With the conversion factor of 1 imp gal equaling 1.20095 gal, you can easily translate between these two units of volume. Whether you're measuring liquids for recipes or fuel, this converter provides accurate results.

1.20095

1 13/64 gal

Conversion Formula

gal = imp gal × 1.20095

Reverse: imp gal = gal × 0.832674

Quick mental math: For quick estimates, multiply the number of Imperial Gallons by 1.2 to get US Gallons.

Conversion Examples

1 imp gal × 1.20095 =
1.201 gal
1 Imperial Gallons = 1.201 US Gallons
5 imp gal × 1.20095 =
6.005 gal
5 Imperial Gallons = 6.005 US Gallons
10 imp gal × 1.20095 =
12.01 gal
10 Imperial Gallons = 12.01 US Gallons
25 imp gal × 1.20095 =
30.024 gal
25 Imperial Gallons = 30.024 US Gallons
50 imp gal × 1.20095 =
60.048 gal
50 Imperial Gallons = 60.048 US Gallons
100 imp gal × 1.20095 =
120.095 gal
100 Imperial Gallons = 120.095 US Gallons

Imperial Gallon to US Gallon Table

imp gal =gal
Imperial Gallon (imp gal)US Gallon (gal)
11.201
22.4019
33.6029
44.8038
56.0048
67.2057
78.4067
89.6076
910.8086
1012.0095
1113.2105
1214.4114
1315.6124
1416.8133
1518.0143
1619.2152
1720.4162
1821.6171
1922.8181
2024.019

Unit Definitions

What is a Imperial Gallon (imp gal)?

ImperialUnited Kingdom

The Imperial Gallon (imp gal) is a unit of volume used primarily in the UK and some Commonwealth countries.

History

Originally defined in the 19th century, the Imperial gallon was based on the volume of 10 pounds of water at a specific temperature. It has since been standardized to 4.54609 liters.

Current Use

Today, the Imperial gallon is commonly used in the UK for measuring fuel and liquids, although the liter is increasingly preferred.

Learn more about Imperial Gallon

What is a US Gallon (gal)?

US CustomaryUnited States

The US Gallon (gal) is a unit of volume commonly used in the United States for measuring liquids.

History

The US gallon was established in the 19th century, and it is based on the volume of 231 cubic inches. It was officially defined in 1866.

Current Use

The US gallon is widely used in the United States for various applications, including fuel, beverages, and cooking.

Learn more about US Gallon

Frequently Asked Questions

How do I convert 5 Imperial Gallons to US Gallons?
To convert 5 imp gal to gal, you would multiply 5 by the conversion factor of 1.20095. This gives you 5 imp gal × 1.20095 = 6.00475 gal. For example, if you have a recipe that calls for 5 imp gal of milk, you will need approximately 6.00475 US gallons of milk instead.
What if I have 10 Imperial Gallons? How many US Gallons is that?
If you have 10 imp gal, you can convert it by multiplying 10 by 1.20095. This results in 10 imp gal × 1.20095 = 12.0095 gal. This is particularly useful in construction, where you may need to convert fuel quantities, as having the correct measurement is crucial for efficiency.
Why is it important to know the difference between Imperial and US Gallons?
Understanding the difference between Imperial and US Gallons is essential, especially in international contexts. For instance, in the UK, fuel is often sold in liters or Imperial gallons, while in the US, it's sold in US gallons. If you're traveling or importing goods, miscalculating could lead to running out of fuel or misjudging liquid requirements, as 10 imp gal translates to about 12.0095 US gal.
Can I use this conversion factor for other liquids as well?
Yes, the conversion factor of 1.20095 applies to any liquid measurement. For instance, if you are filling a container with 3 imp gal of oil, you would convert it to US gallons by calculating 3 imp gal × 1.20095 = 3.60285 gal. This accurate conversion ensures you purchase the correct amount, whether for cooking, automotive, or industrial use.
How can I quickly estimate the conversion without a calculator?
To quickly estimate the conversion from Imperial Gallons to US Gallons, you can think of it as multiplying the number of imp gal by 1.2. For example, if you have 4 imp gal, you can roughly estimate it as 4 × 1.2 = 4.8 gal. This mental math tip provides a close approximation, useful for quick calculations in everyday situations.

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