Fuel Cost Calculator
Cost per km / per trip
Quick guide
What can Fuel Cost Calculator help you do?
Free fuel cost calculator. Enter efficiency, price, distance — get per-km cost and total. EV mode supported.
Best for
Compare energy costs for a planned distance using the gas and EV modes. Both show a per-kilometre amount and trip total from your own inputs. There is no vehicle database, live pump-price lookup, or allowance for parking, tolls, maintenance, and depreciation.
How to use it
Gas mode takes kilometres per litre and cost per litre. EV mode takes kWh per 100 kilometres and cost per kWh. Distance is in kilometres. Convert a dashboard figure in litres per 100 kilometres before entering it in the gas-efficiency field.
How to read the result
At 15 km/L and 30 currency units per litre, gas costs 2 units per kilometre and 1,000 for 500 km. EV cost per kilometre is kWh/100 km divided by 100, multiplied by electricity price. Displayed costs use two decimals.
Privacy and limits
The page calculates from typed efficiency, prices, and distance without requesting location or vehicle records. It does not access charging accounts or infer your route. Approximate distances are sufficient for comparisons when you do not want to disclose a regular journey.
Use consistent currency and positive consumption figures. This estimate does not model idling, weather, charging losses, or time-of-use tariffs. Check actual consumption and bills before relying on a default figure for a vehicle or journey.
Frequently Asked Questions
How do I compare gas and EV costs?
Enter your current fuel or electricity price and measured vehicle efficiency, then compare cost per km. Results vary by rates and driving conditions.