mpg (UK) to km/L — convert Imperial miles per gallon to kilometres per litre
1 mpg (UK) → 0.35400619 km/L
1 Imperial mile per gallon in other units
| Litres per 100 km | 282.480936 | L/100 km |
|---|---|---|
| US miles per gallon | 0.83267418 | mpg (US) |
| Kilometres per litre | 0.35400619 | km/L |
| Miles per litre | 0.21996925 | mi/L |
mpg (UK) to km/L at a glance
| Imperial miles per gallon | Kilometres per litre |
|---|---|
| 1 mpg (UK) | 0.35400619 km/L |
| 2 mpg (UK) | 0.70801238 km/L |
| 3 mpg (UK) | 1.062019 km/L |
| 5 mpg (UK) | 1.770031 km/L |
| 10 mpg (UK) | 3.540062 km/L |
| 20 mpg (UK) | 7.080124 km/L |
| 25 mpg (UK) | 8.850155 km/L |
| 50 mpg (UK) | 17.700309 km/L |
| 100 mpg (UK) | 35.400619 km/L |
| 250 mpg (UK) | 88.501547 km/L |
| 500 mpg (UK) | 177.003095 km/L |
| 1,000 mpg (UK) | 354.00619 km/L |
How to convert Imperial miles per gallon to kilometres per litre
Multiply by 0.35400619 — one Imperial mile per gallon is 0.35400619 kilometres per litre.
Working 1 mpg (UK) → 0.35400619 km/L
Questions
How many kilometres per litre are in a Imperial mile per gallon?
One Imperial mile per gallon is 0.35400619 kilometres per litre.
What is 1 Imperial mile per gallon in kilometres per litre?
1 Imperial mile per gallon is 0.35400619 kilometres per litre. The working is 1 mpg (UK) → 0.35400619 km/L.
Why can't I convert mpg with a simple multiplier?
Because the two measures run in opposite directions. Miles per gallon counts distance per unit of fuel; litres per 100 km counts fuel per unit of distance. One is the reciprocal of the other, so you divide rather than multiply.
Why is UK mpg always a bigger number than US mpg?
The Imperial gallon is about 20% larger, so the same car travels further on one of them. A car rated 30 mpg in the US is around 36 mpg in the UK, with nothing about the car having changed.
Going from 15 to 20 mpg, or 30 to 40 mpg — which saves more fuel?
The first, by a wide margin. Over 10,000 miles the 15-to-20 change saves about 167 gallons; the 30-to-40 change saves about 83. This is exactly the trap the inverse relationship sets, and why litres per 100 km is the easier measure to reason with.