gal/100mi (US) to MPG (UK) Converter
Convert gal/100mi (US) (gal/100mi) to MPG (UK) (mpg UK) instantly. These units have an inverse relationship — use the converter above for accurate results.
Common Fuel Economy Conversions
gal/100mi (US) to MPG (UK) Conversion Table
| gal/100mi (US) (gal/100mi) | MPG (UK) (mpg UK) |
|---|---|
| 5 gal/100mi | 132.887578 mpg UK |
| 10 gal/100mi | 66.443789 mpg UK |
| 15 gal/100mi | 44.295859 mpg UK |
| 20 gal/100mi | 33.221895 mpg UK |
| 25 gal/100mi | 26.577516 mpg UK |
| 30 gal/100mi | 22.14793 mpg UK |
| 35 gal/100mi | 18.98394 mpg UK |
| 40 gal/100mi | 16.610947 mpg UK |
| 50 gal/100mi | 13.288758 mpg UK |
| 60 gal/100mi | 11.073965 mpg UK |
| 80 gal/100mi | 8.30547364 mpg UK |
| 100 gal/100mi | 6.64437891 mpg UK |
How to Convert gal/100mi (US) to MPG (UK)
gal/100mi (US) and MPG (UK) have an inverse (reciprocal) relationship — one measures how far you go per unit of fuel (efficiency), while the other measures how much fuel is needed per distance (consumption).
To convert, the value is first expressed as km/L, then the target unit's formula is applied. A higher gal/100mi value corresponds to a lower mpg UK value (better economy in both cases).
Example: 30 gal/100mi (US) ≈ 22.14793 MPG (UK)
Frequently Asked Questions
About These Units
A fuel consumption unit. Measures how much fuel a vehicle uses per unit of distance — lower is better.
A fuel efficiency unit. Measures how far a vehicle travels per unit of fuel — higher is better.