Fuel Economy unit converter
MPG and L/100km — reciprocal scales, which is why the conversion isn’t linear.
Precision & format
1 mpg (US) equals
1.200949926mpg (UK)
All 9 units
- Mile per gallon (US)mpg (US)1
- Mile per gallon (Imperial)mpg (UK)1.200949926
- Liter per 100 kilometersL/100km235.2145833
- Kilometer per literkm/L0.4251437074
- Mile per litermi/L0.2641720524
- Kilometer per gallon (US)km/gal (US)1.609344
- Meter per cubic meterm/m³SI base for this category425,143.7074
- Gallon (US) per 100 milesgal/100mi100
- Liter per 100 milesL/100mi378.5411784
Fuel Economy conversion table
Every unit expressed in meter per cubic meters (m/m³), the SI base for this category.
| Unit | Symbol | 1 unit in m/m³ |
|---|---|---|
| Mile per gallon (US) | mpg (US) | 425,143.71 |
| Mile per gallon (Imperial) | mpg (UK) | 354,006.19 |
| Liter per 100 kilometers | L/100km | — |
| Kilometer per liter | km/L | 1,000,000 |
| Mile per liter | mi/L | 1,609,344 |
| Kilometer per gallon (US) | km/gal (US) | 264,172.05 |
| Meter per cubic meterSI base for this category | m/m³ | 1 |
| Gallon (US) per 100 miles | gal/100mi | — |
| Liter per 100 miles | L/100mi | — |
Units marked “—” don’t have a single multiplier: they’re offset scales (like °C and °F, where zero means different things) or reciprocal ones (like L/100km). Use the converter for those.
