55 MPG to Miles per Litre
| 55 MPG (UK) | = | 12.1 miles per litre |
| 55 MPG (UK) | = | 5.14 L/100km |
| 55 MPG (UK) | = | 19.5 km/L |
| 55 MPG (UK) | = | 45.8 MPG (US) |
How to Convert MPG to Miles per Litre
The conversion is linear: a litre is a fixed fraction of a gallon, so dividing MPG by the litres-per-gallon constant gives miles per litre directly.
- MPL = MPG (UK) ÷ 4.54609
- MPL = MPG (US) ÷ 3.785411784
Applying the formula to 55 MPG (UK): 55 ÷ 4.54609 = 12.1 miles per litre.
Is 55 MPG (UK) good?
55 MPG (UK) is considered Very good — modern diesel or hybrid. That works out to 12.1 miles per litre, 5.14 L/100km, or 19.5 km/L. In US terms, 55 MPG (UK) = 45.8 MPG (US).
Need a different value? Use our MPG to Miles per Litre Converter.
Similar Conversions
| MPG (UK) | MPL | L/100km |
|---|---|---|
| 50 MPG | 11.0 | 5.65 |
| 51 MPG | 11.2 | 5.54 |
| 52 MPG | 11.4 | 5.43 |
| 53 MPG | 11.7 | 5.33 |
| 54 MPG | 11.9 | 5.23 |
| 56 MPG | 12.3 | 5.04 |
| 57 MPG | 12.5 | 4.96 |
| 58 MPG | 12.8 | 4.87 |
| 59 MPG | 13.0 | 4.79 |
| 60 MPG | 13.2 | 4.71 |
Related Fuel Economy Converters
Miles per Litre to MPG
Reverse conversion: miles per litre to miles per gallon (UK and US).
MPG (UK) to L/100km
Convert Imperial MPG to litres per 100 km for European comparisons.
MPG to L/100km
Miles per gallon (US/UK) to litres per 100 km.
MPG Calculator
Calculate your car’s MPG from distance and fuel used.
Conversion factors verified against NIST, BIPM
Based on SI definitions (BIPM).
Last reviewed: March 2026
