Miles per gallon (UK) to miles per gallon Converter

Enter the miles per gallon (UK), then press Calculate. The miles per gallon stay hidden while you type.

Press Calculate after the entries are in.

What this fuel economy conversion is for

Use this page when a measurement is written in miles per gallon (UK) and the next step needs miles per gallon. The number stays blank until you press Calculate, so a half-typed entry is never mistaken for the answer.

The factor

Miles per gallon and liters per 100 kilometers run in opposite directions. US L/100km = 235.215 ÷ mpg. UK gallons are larger, so UK L/100km = 282.481 ÷ mpg. Kilometers per liter = 100 ÷ L/100km.

A worked example

30 miles per gallon (UK) are 24.98022554 miles per gallon. Multiply the result by the reverse factor if you want the original number back.

How to check it

Write the factor down, do the multiply on paper, and compare it with the result card. If you change a sentence on this page, edit the HTML file and reload. The form and this note live in the same file.

The reverse conversion is miles per gallon to miles per gallon (UK). A nearby pair in the same units is liters per 100 kilometers to miles per gallon. When the converted number is the input to a job, continue with the miles per gallon.