MPG (UK) to L/100km Converter
35.31
8 MPG (UK) = 35.31 L/100km
Quick Facts
- •40 MPG (UK) ≈ 7.06 L/100km
- •60 MPG (UK) ≈ 4.71 L/100km
- •UK gallons are larger than US gallons
- •Same MPG number = different consumption US vs UK
How to Convert
L/100km = 282.481 ÷ MPG (UK)
Divide 282.481 by the Imperial MPG value to get L/100km.
Exact constant: 1 Imperial gallon = 4.54609 L
Worked Example
Convert 40 MPG (UK):
282.481 ÷ 40 ≈ 7.06 L/100km
Common Conversions
| MPG (UK) | L/100km |
|---|---|
| 15 | 18.83 |
| 20 | 14.12 |
| 25 | 11.3 |
| 30 | 9.42 |
| 35 | 8.07 |
| 40 | 7.06 |
| 45 | 6.28 |
| 50 | 5.65 |
| 60 | 4.71 |
| 80 | 3.53 |
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Frequently Asked Questions
How do I convert UK MPG to L/100km?
Divide 282.481 by the MPG (UK) value.
What is 50 MPG (UK) in L/100km?
282.481 ÷ 50 ≈ 5.65 L/100km.
Is 40 MPG (UK) good?
Decent for a petrol car. Diesels often achieve 50–65 MPG (UK).
How do UK and US MPG compare?
40 MPG (UK) ≈ 33.3 MPG (US) because Imperial gallons are larger.
Which is more fuel-efficient, same number US or UK MPG?
Same number UK MPG is more efficient because the Imperial gallon is ~20% larger.