Fuel calculator
How Many Miles for £20 of Diesel?
Estimate how far £20 of diesel could take you using the diesel price and UK MPG you enter.
Estimate your range
What your result means
The result estimates how many miles £20 of diesel could buy at the price and UK MPG entered. The diesel price determines how many litres the budget purchases, while MPG determines how far those litres may take the vehicle.
It is a fuel-only range estimate. Real-world range can vary with driving conditions and the MPG you actually achieve.
Worked example
Example only: £20, 150p per litre and 50 UK MPG. For a larger diesel top-up, the comparison shows how price or budget changes the estimate.
- Diesel purchased
- 13.3 litres
- UK gallons
- 2.93
- Estimated range
- 146.6 miles
The calculator uses the same three steps: buy litres, convert to UK gallons, then apply UK MPG.
Formula
Range by budget at 150p/litre and 50 UK MPG
| Budget | Estimated range |
|---|---|
| £5 | 36.7 miles |
| £10 | 73.3 miles |
| £20 | 146.6 miles |
| £25 | 183.3 miles |
Helpful questions
Does £20 of diesel always give the same range?
No. The estimate changes with the diesel price and the UK MPG entered. The same budget buys fewer litres at a higher price, while a different MPG changes the estimated distance.
What MPG should I enter for my diesel vehicle?
Use a measured real-world UK MPG where possible. The MPG Calculator can work it out from miles driven and litres used.
Why might my actual diesel range be different?
Traffic, speed, load, weather and driving style can change real diesel consumption. This calculation estimates range from the price and UK MPG you enter.
Does this use UK or US MPG?
It uses UK / imperial MPG, based on a 4.54609-litre UK gallon. Convert US MPG to UK MPG if your figure uses a US gallon.
Related calculators
- How Many Miles for £15 of Diesel?
Estimate range from £15 of diesel.
- Diesel Cost Per Mile
Calculate diesel cost per mile.