MPG (US) to gal/100mi (US) Converter
Convert MPG (US) (mpg) to gal/100mi (US) (gal/100mi) instantly. These units have an inverse relationship — use the converter above for accurate results.
Common Fuel Economy Conversions
MPG (US) to gal/100mi (US) Conversion Table
| MPG (US) (mpg) | gal/100mi (US) (gal/100mi) |
|---|---|
| 5 mpg | 110.65192 gal/100mi |
| 10 mpg | 55.32596 gal/100mi |
| 15 mpg | 36.883973 gal/100mi |
| 20 mpg | 27.66298 gal/100mi |
| 25 mpg | 22.130384 gal/100mi |
| 30 mpg | 18.441987 gal/100mi |
| 35 mpg | 15.807417 gal/100mi |
| 40 mpg | 13.83149 gal/100mi |
| 50 mpg | 11.065192 gal/100mi |
| 60 mpg | 9.22099336 gal/100mi |
| 80 mpg | 6.91574502 gal/100mi |
| 100 mpg | 5.53259601 gal/100mi |
How to Convert MPG (US) to gal/100mi (US)
MPG (US) and gal/100mi (US) 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 mpg value corresponds to a lower gal/100mi value (better economy in both cases).
Example: 30 MPG (US) ≈ 18.441987 gal/100mi (US)
Frequently Asked Questions
About These Units
A fuel efficiency unit. Measures how far a vehicle travels per unit of fuel — higher is better.
A fuel consumption unit. Measures how much fuel a vehicle uses per unit of distance — lower is better.