Calculate Your Fuel Cost
MPG
p/litre
miles
Annual Fuel Cost
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0p
Cost Per Mile
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Per Month
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0L
Litres Per Year
Trip Cost Calculator
Enter a trip distance to calculate its fuel cost using the details above.
Frequently Asked Questions
How do I calculate fuel cost per mile? ▼
Fuel cost per mile = (fuel price in p/litre × 4.54609) ÷ MPG. At 140p/litre and 40 MPG: (140 × 4.54609) ÷ 40 = 15.9p per mile. The 4.54609 converts imperial gallons to litres.
What is a good MPG for a UK car? ▼
Real-world fuel economy: small petrol cars typically achieve 35–45 MPG; family diesels 45–60 MPG; hybrids 50–70 MPG. Manufacturer MPG figures are lab-tested and typically 10–20% better than real-world results — use our presets or enter your actual tank fill-up data for accuracy.
How much does the average UK driver spend on fuel? ▼
At the UK average of 7,400 miles/year, 40 MPG and 140p/litre fuel: approximately £1,175/year. Higher mileage drivers (15,000–20,000 miles/year) spend £2,400–£3,200 annually.
How do I improve my MPG? ▼
Keep tyres inflated to the correct pressure (under-inflation increases rolling resistance), remove roof racks when not needed, accelerate and brake smoothly, use the highest gear appropriate, and avoid idling. Air conditioning increases fuel consumption by 5–15%.