
Rex says
Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.
Try a scenario
Click to load — tweak from there.Inputs
Result
Trip cost
$43.75
Fuel used
12.50

Psst — share this and help Rex grow
One click, a permanent link with your numbers baked in.
How to use this
- 1Enter trip distance.
- 2Enter units.
- 3Enter efficiency.
- 4Enter fuel price.
- 5Read your trip cost on the right — it updates as you type.
- 6Hit Share to keep the scenario or send it to someone.
About this calculator
Estimate the fuel cost of a trip from distance, vehicle efficiency, and gas price.
