Calculyn

Fuel Efficiency Converter

Convert between MPG (US), MPG (UK), and L/100km.

Results update as you type.

35 MPG (US) equals

6.72L/100km
In L/100km
6.72
35 MPG (US) equals6.72

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Quick answer

35 MPG (US) ≈ 6.72 L/100km ≈ 42 MPG (UK).

How it works

Note the direction flip: higher MPG is better, but lower L/100km is better. UK gallons are larger than US gallons, so UK MPG numbers run higher.

Formula

L/100km = 235.215 ÷ MPG (US) · L/100km = 282.481 ÷ MPG (UK)

Assumptions & limitations

  • Results are rounded for display.

Frequently asked questions

Why is UK MPG different?

The imperial gallon is 4.546 liters vs 3.785 liters for the US gallon — about 20% bigger.