20 mpg (US) to mi/L — 20 US miles per gallon in miles per litre
20 mpg (US) → 5.283441 mi/L
20 US miles per gallon in other units
| Litres per 100 km | 11.760729 | L/100 km |
|---|---|---|
| Imperial miles per gallon | 24.018999 | mpg (UK) |
| Kilometres per litre | 8.502874 | km/L |
| Miles per litre | 5.283441 | mi/L |
mpg (US) to mi/L at a glance
| US miles per gallon | Miles per litre |
|---|---|
| 1 mpg (US) | 0.26417205 mi/L |
| 2 mpg (US) | 0.5283441 mi/L |
| 3 mpg (US) | 0.79251616 mi/L |
| 5 mpg (US) | 1.32086 mi/L |
| 10 mpg (US) | 2.641721 mi/L |
| 20 mpg (US) | 5.283441 mi/L |
| 25 mpg (US) | 6.604301 mi/L |
| 50 mpg (US) | 13.208603 mi/L |
| 100 mpg (US) | 26.417205 mi/L |
| 250 mpg (US) | 66.043013 mi/L |
| 500 mpg (US) | 132.086026 mi/L |
| 1,000 mpg (US) | 264.172052 mi/L |
How to convert US miles per gallon to miles per litre
Multiply by 0.26417205 — one US mile per gallon is 0.26417205 miles per litre.
Working 20 mpg (US) → 5.283441 mi/L
In words: about five miles per litre.
What these units are
The US mile per gallon and the mile per litre are covered in the fuel economy unit guide, along with every other unit on this page.
Questions
How many miles per litre are in a US mile per gallon?
One US mile per gallon is 0.26417205 miles per litre.
What is 20 US miles per gallon in miles per litre?
20 US miles per gallon is 5.283441 miles per litre. The working is 20 mpg (US) → 5.283441 mi/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.
Other fuel economy conversions
More conversions
- 500 mpg (US) to L/100 kmFuel economy
- 50 mpg (US) to L/100 kmFuel economy
- 20 mpg (US) to L/100 kmFuel economy
- 1 L/100 km to mpg (US)Fuel economy
- 1,000 mpg (US) to L/100 kmFuel economy
- 200 mpg (US) to L/100 kmFuel economy
- 100 mpg (US) to L/100 kmFuel economy
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