Fuel cost calculator for road trips

How to use this tool

1. Enter your values or choose a local file. Replace the example data with your own.
2. Review options, units and assumptions, then run the tool.
3. Check the result before copying or downloading it. Keep an original copy of important files.

Method & assumptions

Fuel needed and trip cost from distance, fuel economy (L/100 km or MPG) and fuel price, split between passengers.

Worked example

Distance (km or miles): 450
Fuel economy unit: L/100 km + price per litre
Fuel economy: 8
Fuel price: 1.55
Round trip: Yes
People sharing the cost: 1

→ Fuel needed: 72 L
→ Trip cost: 111.6
→ Cost per person: 111.6

Limits & important notes

Basic release. Review the result before relying on it. File limits, supported cases and processing requirements are shown above.

Content updated: 2026-10-10