Convert MPG (US) (mpg_us) to MPG (UK) (mpg_uk) instantly. US to UK fuel economy conversion.
| Unit | Name | Value |
|---|---|---|
| kml | km/L (kmpl) | — |
| l100km | L/100km | — |
| mpg_uk | MPG (UK) | — |
| mpl | Miles per Litre | — |
Formula: MPG (UK) = MPG (US) × 1.201
Reverse: Reverse: MPG (US) = MPG (UK) × 0.8327
Example (average car): 29.4 MPG (US) = 35.31 MPG (UK)
Typical real-world fuel economy values — sorted from least to most efficient
| MPG (US) (MPG (US)) | MPG (UK) (MPG (UK)) | Vehicle / Context |
|---|---|---|
| 8.233 MPG (US) | 9.887 MPG (UK) | Diesel semi-truck (full load) |
| 10.58 MPG (US) | 12.71 MPG (UK) | Hypercar (McLaren F1) |
| 17.64 MPG (US) | 21.19 MPG (UK) | Large pickup truck |
| 19.99 MPG (US) | 24.01 MPG (UK) | Large SUV |
| 29.4 MPG (US) | 35.31 MPG (UK) | Average new petrol car (global) |
| 32.93 MPG (US) | 39.55 MPG (UK) | Compact sedan |
| 39.99 MPG (US) | 48.02 MPG (UK) | European supermini |
| 42.34 MPG (US) | 50.85 MPG (UK) | Motorcycle (1000cc) |
| 51.75 MPG (US) | 62.15 MPG (UK) | Honda Insight hybrid |
| 58.8 MPG (US) | 70.62 MPG (UK) | Toyota Prius hybrid |
| 65.86 MPG (US) | 79.09 MPG (UK) | Toyota Prius Prime PHEV |
| 70.56 MPG (US) | 84.74 MPG (UK) | Suzuki Alto (city car) |
| 82.33 MPG (US) | 98.87 MPG (UK) | Motorcycle (125cc) |
| 117.6 MPG (US) | 141.2 MPG (UK) | Scooter (50cc) |
| 261.1 MPG (US) | 313.6 MPG (UK) | Volkswagen XL1 (record) |
MPG (US) × 1.201 = MPG (UK). UK gallon is 1.201× larger.
30 MPG US = 36 MPG UK. 40 MPG US = 48 MPG UK. 50 MPG US = 60 MPG UK.
MPG (UK) × 0.8327 = MPG (US).
Compares fuel economy across international vehicle specs — converting between MPG (US), MPG (UK), km/L, and L/100km.
Calculates fuel costs and sets efficiency targets using L/100km (Europe/Australia) or MPG (US/UK).
Converts between regional fuel economy standards when reviewing international vehicle launches.
Converts fuel economy specs of rental vehicles between familiar and local units.
Converts fuel efficiency data to calculate CO₂ emissions across vehicle fleets in different units.
Validates fuel efficiency test results across EPA (MPG US), WLTP (L/100km), and JC08 (km/L) cycles.
Miles per gallon — US (MPG US) uses the US gallon of 3.785 liters. It is the mandatory fuel economy rating in the United States and is published by the EPA for all new vehicles sold in the US. The US gallon is about 17% smaller than the Imperial gallon.
EPA fuel economy ratings: combined city/highway. A typical American sedan achieves 28–35 MPG; a large pickup truck 16–22 MPG; Toyota Prius hybrid 50–57 MPG; the Tesla Model 3 is rated at 132 MPGe (miles per gallon equivalent). The CAFE standard requires ~49 MPG fleet average by 2026.
Interesting fact: The US MPG standard was introduced in response to the 1973 Arab oil embargo. The EPA fuel economy label on new vehicles has been redesigned multiple times, most recently in 2013, and now also shows MPGe (miles per gallon equivalent) for electric and plug-in hybrid vehicles.
Miles per gallon — Imperial (MPG UK) uses the larger Imperial gallon of 4.546 liters, making it about 20% higher than the equivalent US MPG figure. It is used in the United Kingdom and some Commonwealth countries for vehicle fuel economy ratings.
UK fuel economy for common vehicles: a Ford Fiesta petrol might achieve 50–55 MPG (UK); a large Range Rover 25–30 MPG (UK); a Toyota Yaris hybrid 65–70 MPG (UK). The UK Government's Vehicle Certification Agency (VCA) publishes official WLTP figures for new cars.
Interesting fact: Because the Imperial gallon is larger than the US gallon, the same vehicle has a higher MPG number in the UK than in the US — leading to frequent confusion when comparing international automotive reviews. A car rated at 40 MPG (US) is only 33 MPG (UK) — 1 MPG (UK) ≈ 1.2009 MPG (US).
Fuel efficiency is measured differently across regions: km/L (Japan, India), L/100km (Europe, Australia, Canada), MPG US (USA), MPG UK (Britain). Converting between them is essential for international vehicle comparisons.
Formula: MPG (UK) = MPG (US) × 1.201. Reverse: MPG (US) = MPG (UK) × 0.8327.
All conversions use exact gallon definitions: US gallon = 3.785411784 L; Imperial gallon = 4.54609 L.