Imperial Gallons to US Liquid Gallons Converter

1 imp gal = 1.2009499255 gal. Type any value below for the exact us liquid gallons figure.

Measurement system: This conversion uses the US customary measure, not the Imperial/UK measure.

imp gal
1.2009499255gal

1 imp gal = 1.2009499255 gal

For the same numeric input: 1 US gal = 3.785411784 L · 1 Imperial gal = 4.54609 L.

Conversion summary

1 imp gal = 1.2009499255 gal

Formula
US Liquid Gallon = Imperial Gallon × 1.2009499255
Category
Volume
Units
imp gal → gal

1 imp gal in other units

Values update with the converter above. Select a row to open that conversion's detailed page.

Metric

  • Cubic meter0.00454609 m³
  • Liter4.54609 L
  • Milliliter4,546.09 mL
  • Deciliter45.4609 dL
  • Centiliter454.609 cL
  • Cubic centimeter4,546.09 cm³

US / Imperial

  • Cubic foot0.1605437 ft³
  • Cubic inch277.4194 in³
  • US Gallon1.20095 gal
  • US Quart4.8038 qt
  • Imperial Quart4 imp qt
  • US Fluid Ounce153.7216 fl oz
  • Imperial Fluid Ounce160 imp fl oz
  • US Pint9.607599 pt
  • Imperial Pint8 imp pt
  • Peck0.5160284 pk
  • Bushel0.1290071 bu
  • Barrel0.02859405 bbl

Kitchen measures

  • Metric Tablespoon (15 mL)303.0727 tbsp
  • Metric Teaspoon (5 mL)909.218 tsp
  • Turkish Water Glass22.73045 glass

Traditional and regional

  • Kile0.1228673 kile
  • Shinik0.4914692 shinik

How do you convert imperial gallons to US liquid gallons?

To convert imperial gallons to US liquid gallons, multiply the number of imperial gallons by 1.2009499255. 1 imp gal = 1.20095 gal.

Conversion formula

US Liquid Gallon = Imperial Gallon × 1.2009499255

Imperial Gallons to US liquid gallons conversion table

Imperial Gallons (imp gal)US Liquid Gallons (gal)
1 imp gal1.20095 gal
2 imp gal2.4019 gal
5 imp gal6.00475 gal
10 imp gal12.0095 gal
20 imp gal24.019 gal
50 imp gal60.0475 gal
100 imp gal120.095 gal

What is Imperial Gallon?

Imperial Gallon is a volume unit used for liquids, containers, storage and technical capacity calculations.

Short history of Imperial Gallon

The imperial gallon was introduced by the British Weights and Measures Act of 1824, originally defined as the volume of 10 pounds of water. Today it is exactly 4.54609 liters.

Open the Imperial Gallon unit guide

What is US Liquid Gallon?

US Liquid Gallon is a volume unit used for liquids, containers, storage and technical capacity calculations.

Short history of US Liquid Gallon

The US liquid gallon descends from the English wine gallon of 231 cubic inches, which the United States kept after Britain introduced the larger imperial gallon in 1824. It equals 3.785411784 liters.

Open the US Liquid Gallon unit guide

Frequently asked questions

What is 1 Imperial Gallon in US Liquid Gallon?

1 imp gal = 1.2009499255 gal.

How do you convert Imperial Gallon to US Liquid Gallon?

To convert imperial gallons to US liquid gallons, multiply the number of imperial gallons by 1.2009499255. 1 imp gal = 1.20095 gal.

Frequently asked questions

How many US liquid gallons are in 1 imperial gallon?

1 imp gal = 1.20095 gal.

How do you convert imperial gallons to US liquid gallons?

To convert imperial gallons to US liquid gallons, multiply the number of imperial gallons by 1.2009499255. 1 imp gal = 1.20095 gal.

How many imperial gallons are in 1 US liquid gallon?

1 gal = 0.832674 imp gal.

Sources

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: Guide to the SI: Units Outside the SI
  3. NIST: Guide to the SI: Volume Conversion Factors
  4. NIST: Guide for the Use of the International System of Units

Other languages

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