Imperial gallons to US gallons
1 imperial gallon in US gallons
1 imp gal = 1.20095 gal
gal = imp gal × 1.200949926
To convert imperial gallons to US gallons, multiply by 1.200949926. The table below gives the values people look up most often, and the converter works for any number.
Imperial gallons to US gallons table
| Imperial gallons | US gallons |
|---|---|
| 1 imp gal | 1.20095 |
| 2 imp gal | 2.4019 |
| 3 imp gal | 3.60285 |
| 4 imp gal | 4.8038 |
| 5 imp gal | 6.00475 |
| 10 imp gal | 12.0095 |
| 15 imp gal | 18.01425 |
| 20 imp gal | 24.019 |
| 25 imp gal | 30.02375 |
| 30 imp gal | 36.0285 |
| 40 imp gal | 48.038 |
| 50 imp gal | 60.0475 |
| 75 imp gal | 90.07124 |
| 100 imp gal | 120.095 |
| 250 imp gal | 300.2375 |
| 500 imp gal | 600.475 |
| 1,000 imp gal | 1,200.9499 |
How the conversion works
The relationship is gal = imp gal × 1.200949926. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.
Imperial gallon: UK gallon.
US gallon: US liquid gallon. The imperial gallon is about 20% larger.
Common questions
- How many US gallons are in one imperial gallon?
- One imperial gallon equals 1.20095 US gallons. gal = imp gal × 1.200949926.
- How do you convert imperial gallons to US gallons?
- Use gal = imp gal × 1.200949926. So 10 imp gal is 12.0095 gal.
- How many imperial gallons are in one US gallon?
- One US gallon equals 0.83267 imperial gallons, which is the reverse of the conversion above.
- Is there more than one kind of imperial gallon?
- UK gallon. US liquid gallon. The imperial gallon is about 20% larger.
Related pages
- US gallons to Imperial gallons The reverse conversion
- Imperial gallons to Liters
- Imperial gallons to Milliliters
- Imperial gallons to Cubic meters
- Imperial gallons to US quarts
- Imperial gallons to US pints
- Imperial gallons to US cups
- Imperial gallons to US fluid ounces
- Imperial gallons to Tablespoons
- Imperial gallons to Teaspoons
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place