MPG Converter
Convert between MPG and L/100km in one step.
Use this converter when you want to move between UK MPG and L/100km. It does not apply fuel prices or assumptions, so you can plug the result into any calculator.
For cost context, try the fuel efficiency calculator or the journey cost calculator . You can also browse the locations hub to compare county and town pages.
When to use this calculator
Use this when you need to convert dashboard or manufacturer efficiency figures before comparing fuel costs.
Inputs
UK unitsResults
Enter your details to calculate
Fill in the form to see your results.
How this is calculatedv
- Enter a value in MPG or L/100km.
- We convert using UK imperial MPG conversion rules.
- Results are rounded to one decimal place for easy planning.