Miles Per Gallon (MPG)
Miles per gallon is the fuel economy measure used in the UK and US: the distance driven on one gallon of fuel.
What is Miles Per Gallon (MPG)?
A higher number means a more economical car. UK (imperial) and US gallons differ in size. To convert, US mpg ≈ 235 ÷ l/100 km; UK mpg ≈ 282 ÷ l/100 km. Because mpg is an inverse measure, going from 20 to 25 mpg saves more fuel than going from 50 to 55 mpg.
How it works
Distance is divided by fuel used, the inverse of litres per 100 km.
Why it matters for your car
Do not compare UK and US mpg directly. Small mpg gains at high values mean less fuel saved than at low values.
Other terms
- 12-volt Socket (Accessory Socket)
- A/C Leak Test
- Battery Passport (EU)
- Brake Assist
- Brake Force Distribution (Brake Bias)
- Cooling System Bleeding
- Grab Handle
- Heater Core
- Idle Speed
- Lane Departure Warning
- Multimeter
- Pedestrian And Cyclist Detection
- Phantom Drain (Vampire Drain)
- Piston
- Rear Main Seal
- Smart Repair (Small Area Repair)
- Total Cost Of Ownership (TCO)
- Trailer And Caravan Tyres
- Vacuum Leak
- Wheel Runout