Convert Imperial Gallon to US Gallon
1.20095
≈ 1 13/64 gal
1 imp gal = 1.2009505 gal
Use the conversion factor 1 imp gal = 1.200950491 gal. To convert Imperial Gallon to US Gallon, multiply the input value by 1.200950491.
Conversion Formula
gal = imp gal × 1.20095
Reverse: imp gal = gal × 0.832674
Conversion Examples
1 imp gal × 1.2009505 =
1.2009505 gal
1 Imperial Gallons = 1.2009505 US Gallons
5 imp gal × 1.2009505 =
6.0047525 gal
5 Imperial Gallons = 6.0047525 US Gallons
10 imp gal × 1.2009505 =
12.009505 gal
10 Imperial Gallons = 12.009505 US Gallons
25 imp gal × 1.2009505 =
30.023762 gal
25 Imperial Gallons = 30.023762 US Gallons
50 imp gal × 1.2009505 =
60.047525 gal
50 Imperial Gallons = 60.047525 US Gallons
100 imp gal × 1.2009505 =
120.09505 gal
100 Imperial Gallons = 120.09505 US Gallons
Imperial Gallon to US Gallon Table
imp gal =—gal
| Imperial Gallon (imp gal) | US Gallon (gal) | Fraction |
|---|---|---|
| 1 | 1.201 | 1 13/64 |
| 2 | 2.4019 | 2 13/32 |
| 3 | 3.6029 | 3 39/64 |
| 4 | 4.8038 | 4 51/64 |
| 5 | 6.0048 | — |
| 6 | 7.2057 | 7 13/64 |
| 7 | 8.4067 | 8 13/32 |
| 8 | 9.6076 | 9 39/64 |
| 9 | 10.8086 | 10 13/16 |
| 10 | 12.0095 | 12 1/64 |
| 11 | 13.2105 | 13 13/64 |
| 12 | 14.4114 | 14 13/32 |
| 13 | 15.6124 | 15 39/64 |
| 14 | 16.8133 | 16 13/16 |
| 15 | 18.0143 | 18 1/64 |
| 16 | 19.2152 | 19 7/32 |
| 17 | 20.4162 | 20 27/64 |
| 18 | 21.6171 | 21 39/64 |
| 19 | 22.8181 | 22 13/16 |
| 20 | 24.019 | 24 1/64 |
Unit Definitions
What is a Imperial Gallon (imp gal)?
ImperialUnited Kingdom
Imperial Gallon (imp gal) is one of the two units used in this conversion. Open its dedicated unit page for the reviewed definition and references.
Learn more about Imperial GallonWhat is a US Gallon (gal)?
US CustomaryUnited States
US Gallon (gal) is one of the two units used in this conversion. Open its dedicated unit page for the reviewed definition and references.
Learn more about US GallonFrequently Asked Questions
How do I convert Imperial Gallon to US Gallon?
Multiply the value in imp gal by 1.200950491. The formula is gal = imp gal × 1.200950491.
How many US Gallon are in 1 Imperial Gallon?
One Imperial Gallon equals 1.200950491 gal.
What is 10 imp gal in gal?
10 imp gal equals 12.00950491 gal.
How do I convert US Gallon back to Imperial Gallon?
Use the reverse factor: 1 gal = 0.8326737922 imp gal.