How it works
Estimate fuel and cost at constant consumption. Include the full round-trip distance if you want a return journey estimate.
litres = distance × consumption/100; cost = litres × price
Worked example
Show example inputs and result
Trip distance: 500 · Consumption: 7 · Price per litre: 1.5.
- Fuel cost
- 52.5
- Fuel used
- 35 L
Questions and answers
Why are some results rounded?
Results display up to 8 decimal places. Calculations use the unrounded values; very small values use scientific notation. JavaScript floating-point arithmetic can introduce tiny rounding differences.
Are my inputs sent to a server?
The calculator processes inputs in your browser. Its code does not send your values to a server.
Method reviewed: October 8, 2026 · Methods & accuracy