PetrolCalculator

Fuel calculator

Miles per £1 Diesel Calculator

Estimate the driving range from £1 of diesel using your price and UK MPG.

Use this calculator

Enter your fuel economy and price.

What your result means

This estimates how far £1 of diesel could take you at the price and UK MPG entered. It is the smallest fixed-budget view: it shows the buying power of a pound rather than a £5, £10 or £20 top-up.

Pump price determines how much fuel £1 buys; UK MPG determines how far that fuel may take the vehicle.

Worked example

Using 50 UK MPG and 155p per litre:

Fuel bought for £1
0.6 litres
Estimated range
7.1 miles
Fuel cost per mile
1,409.3p

The displayed fuel price is an example input, not a current-price claim.

Formula

Miles=100pence per litre÷4.54609×UK MPG\text{Miles}=\frac{100}{\text{pence per litre}}\div4.54609\times\text{UK MPG}

Diesel price and miles per £1

PriceUK MPGEstimated miles
135p/litre508.1 miles
140p/litre507.9 miles
145p/litre507.6 miles
150p/litre507.3 miles
155p/litre507.1 miles
160p/litre506.9 miles
165p/litre506.7 miles

Using a £1 estimate

Use this for a quick price-and-efficiency comparison. The fixed £5, £10 and £20 calculators answer a different question: the range from a chosen top-up budget.

A change in either MPG or price can be material over many miles, even when the £1 result moves by only a fraction of a mile.

Assumptions and limitations

  • UK / imperial MPG is used.
  • Actual range varies with traffic, speed, weather, load and driving style.

Helpful questions

Why does a higher fuel price reduce miles per £1?

£1 buys fewer litres at a higher price.

Why does better MPG increase miles per £1?

Each litre covers more distance at a higher measured UK MPG.

Is this a current fuel-price tracker?

No. Enter the price you want to model.

How is this different from £10 of fuel?

It fixes the budget at £1; the other calculators model a larger chosen top-up.

Does this use US MPG?

No. It uses UK / imperial MPG.

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