Free online calculator · No signup · UK & Australia
Fuel Cost Calculator
Turn distance, pump price and vehicle economy into trip cost, monthly fuel spend and cost per kilometre.
Quick answer
Enter distance, fuel price and km/litre (or UK MPG) to see trip cost, monthly cost, cost per km and an annual run-rate.
1 · Trip inputs
Distance, price and economy
2 · Outcome
Fuel spend
Trip cost
£0
Monthly cost
£0
Cost per km
£0
Annual run-rate
£0
How to use this calculator
- 1 Fill in the labelled inputs for your scenario (costs, sizes, rates or distances).
- 2 Read the live outputs — totals, ratios and recommendations update as you type.
- 3 Stress-test a worse case (lower conversion, higher freight, denser cartons) before you commit budget.
- 4 Share the page URL with your team, then productise the workflow with Samvara when you are ready.
Useful? Share this free calculator with your ops or commercial team.
Frequently asked questions
Round trip or one way?
Choose Round trip to double the entered one-way distance for the trip cost.
How does the MPG helper work?
Enter UK MPG and we convert to km/litre using imperial gallons, then fill the mileage field.
What is monthly cost?
Trip fuel cost × trips per month — useful for a lane or vehicle budget sketch.
Can I compare vehicles?
Yes — change km/litre (or MPG) and re-run. Keep distance and price constant for a fair comparison.