US Gallons to Imperial Gallons Converter (gal to imp gal)
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Formula
To convert US gallons to imperial gallons, multiply the value by 0.832674185.
imp gal = gal × 0.832674185
Example calculation
Convert 5 gal to imp gal:
5 gal × 0.832674185 = 4.16337 imp gal
Conversion table
| gal | imp gal |
|---|---|
| 1 | 0.8327 |
| 2 | 1.6653 |
| 3 | 2.4980 |
| 4 | 3.3307 |
| 5 | 4.1634 |
| 6 | 4.9960 |
| 7 | 5.8287 |
| 8 | 6.6614 |
| 9 | 7.4941 |
| 10 | 8.3267 |
| 15 | 12.4901 |
| 20 | 16.6535 |
| 25 | 20.8169 |
| 30 | 24.9802 |
| 35 | 29.1436 |
| 40 | 33.3070 |
| 45 | 37.4703 |
| 50 | 41.6337 |
| 55 | 45.7971 |
| 60 | 49.9605 |
| 65 | 54.1238 |
| 70 | 58.2872 |
| 75 | 62.4506 |
| 80 | 66.6139 |
| 85 | 70.7773 |
| 90 | 74.9407 |
| 95 | 79.1040 |
| 100 | 83.2674 |
| 200 | 166.5348 |
| 500 | 416.3371 |
| 1000 | 832.6742 |
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About the units
- US Gallon (gal)
- Used for fuel and liquids in the United States. Exactly 3.785411784 litres (231 cubic inches).
- Imperial Gallon (imp gal)
- The UK imperial gallon, defined in 1824 and now exactly 4.54609 litres. Still seen in UK fuel economy figures.
Frequently asked questions
- How do I convert US gallons to imperial gallons?
- To convert US gallons to imperial gallons, multiply the value by 0.832674185.
- How many imperial gallons are in 1 US gallon?
- 1 US gallon equals 0.832674 imp gal.
- How many imperial gallons are in 10 US gallons?
- 10 gal equals 8.32674 imp gal.
- How do I convert imperial gallons back to US gallons?
- Use the reverse converter: 1 imperial gallon equals 1.20095 gal.
- Is this converter accurate?
- Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.
Related conversions
- Reverse conversion: imperial gallons → US gallons
- milliliters → US gallons
- US gallons → milliliters
- milliliters → imperial gallons
- imperial gallons → milliliters
- liters → US gallons
- US gallons → liters
- liters → imperial gallons
- imperial gallons → liters