formula.expert

Convert imperial gallon to US gallon

1 imp gal = 1.200949926 gal

1 imp gal = 1.2009 gal
1 imp gal in every volume unit
cubic millimeter4,546,100 mm³
microliter4,546,100 μL
milliliter4,546.1 mL
cubic centimeter4,546.1 cm³
US teaspoon922.33 tsp
centiliter454.61 cL
US tablespoon307.44 tbsp
cubic inch277.42 in³
imperial fluid ounce160 imp fl oz
US fluid ounce153.72 fl oz
deciliter45.461 dL
US cup19.215 cup
US pint9.6076 pt
imperial pint8 imp pt
US quart4.8038 qt
liter4.5461 L
cubic decimeter4.5461 dm³
imperial quart4 imp qt
board foot1.9265 fbm
US gallon1.2009 gal
imperial gallon1 imp gal
cubic foot0.16054 ft³
US bushel0.12901 bu
hectoliter0.045461 hL
US beer barrel0.03874 bbl beer
oil barrel0.028594 bbl
cubic yard0.0059461 yd³
cubic meter0.0045461 m³
kiloliter0.0045461 kL
hundred cubic feet0.0016054 CCF
cord0.0012542 cord
acre-foot0.0000036856 ac·ft
million US gallons0.0000012009 MG
cubic kilometer4.5461e-12 km³
How the conversion works

Multiply by 1.200949926 to go from imperial gallon to US gallon, or divide by it to go back. Every conversion on this site routes through the SI value (m³) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.

Going the other way? US gallon to imperial gallon — 1 gal = 0.8326741846 imp gal.

imperial gallon to US gallon — common values
1 imp gal1.2009499 gal
2 imp gal2.4018999 gal
3 imp gal3.6028498 gal
5 imp gal6.0047496 gal
10 imp gal12.009499 gal
15 imp gal18.014249 gal
20 imp gal24.018999 gal
25 imp gal30.023748 gal
50 imp gal60.047496 gal
75 imp gal90.071244 gal
100 imp gal120.09499 gal
250 imp gal300.23748 gal
500 imp gal600.47496 gal
1000 imp gal1,200.9499 gal
Other volume conversions
mL → galL → galm³ → galimp gal → mLimp gal → Limp gal → m³imp gal → qtimp gal → pt

All volume units →

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