Gallons per 100 miles (UK) was commonly used in Britain before metrication and is still referenced for classic cars. For example, a 1960s Morris Minor might average 3 gal/100mi (≈8.5 L/100km), while a modern UK-spec diesel sedan could achieve 2.2 gal/100mi (≈6.2 L/100km). Liters per 100 miles (L/100mi) combines metric fuel measurement with imperial distance. It shows how many liters of fuel a car uses to travel 100 miles. For example, a car that consumes 6 L/100mi is roughly equivalent to 39 mpg US. This unit is handy when comparing European or Asian import cars in North America.
To convert between Gallons per 100 Miles (UK) (gal/100mi (UK)) and Liters per 100 Miles (L/100mi), use the following formulas:
1 Gallons per 100 Miles (UK) (gal/100mi (UK)) = 4.54609 Liters per 100 Miles (L/100mi)
1 Liters per 100 Miles (L/100mi) = 0.21996924829908776 Gallons per 100 Miles (UK) (gal/100mi (UK))
2 gal/100mi (UK) = 2 * 4.54609 L/100mi = 9.09218 L/100mi
2.5 gal/100mi (UK) = 2.5 * 4.54609 L/100mi = 11.365225 L/100mi
3 gal/100mi (UK) = 3 * 4.54609 L/100mi = 13.638270000000002 L/100mi
3.5 gal/100mi (UK) = 3.5 * 4.54609 L/100mi = 15.911315000000002 L/100mi
4 gal/100mi (UK) = 4 * 4.54609 L/100mi = 18.18436 L/100mi
| Gallons per 100 Miles (UK) (gal/100mi (UK)) | Liters per 100 Miles (L/100mi) |
|---|---|
| 1.5 gal/100mi (UK) | 6.819135000000001 L/100mi |
| 2 gal/100mi (UK) | 9.09218 L/100mi |
| 2.5 gal/100mi (UK) | 11.365225 L/100mi |
| 3 gal/100mi (UK) | 13.638270000000002 L/100mi |
| 3.5 gal/100mi (UK) | 15.911315000000002 L/100mi |
| 4 gal/100mi (UK) | 18.18436 L/100mi |
| 5 gal/100mi (UK) | 22.73045 L/100mi |
| 6 gal/100mi (UK) | 27.276540000000004 L/100mi |