km
Liters per 100km.
/liter
Output
Output will appear here
Click in the output to select all text
Fuel Cost Calculator
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This Fuel Cost Calculator estimates how much a trip will cost in fuel based on the distance, your vehicle's fuel efficiency (liters per 100km), and the current fuel price, along with a cost-per-kilometer figure useful for comparing vehicles or splitting a road trip's expenses. Enter your trip distance, efficiency rating (check your vehicle's manual or trip computer), and local fuel price, and get an instant estimate. It's handy for planning a road trip budget, estimating commute costs, or comparing the running cost of different vehicles. Everything runs locally in your browser. Scroll down to enter your trip details.
Features
- Estimates total fuel cost and liters required for a trip
- Shows cost per kilometer for vehicle comparisons
- Works with any currency and fuel price unit consistently
- Instant recalculation as you adjust inputs
Why use this fuel cost calculator?
- Quick trip budgeting without a spreadsheet
- Useful for comparing vehicle running costs
- Fully private — nothing uploaded
- Free with unlimited use
Frequently asked questions
Where do I find my vehicle's fuel efficiency?
Check your vehicle's manual, trip computer/dashboard display, or a recent fill-up calculation (liters used ÷ distance driven × 100 for L/100km).
Can I use miles and gallons instead?
Convert your figures to km and liters first (or liters per 100km), since the calculator's formula is unit-based, not label-based — the site's Length and Volume unit converters can help with that conversion.
Does this account for traffic or driving style?
No, it uses a fixed efficiency figure you provide; real-world consumption varies with traffic, terrain, load, and driving style.
Can I use this to compare two vehicles?
Yes, run the same trip distance and fuel price with each vehicle's efficiency rating and compare the resulting cost-per-km figures.
Does this include tolls or other trip costs?
No, this calculates fuel cost only; add tolls, parking, or other expenses separately for a full trip budget.