Calculate your result
Enter your figures below. Values stay in your browser.
How to use Fuel Stops Estimator
- Enter your figures in the units shown beside each field. Keep monetary inputs in the same currency; money results are currently displayed in USD.
- Select the unit standard where the form offers a choice, then choose Calculate.
- Read the breakdown and compare the worked example below. Change one assumption to see its effect.
Formula used
Stops = round up max(0, trip distance − starting range) ÷ range added by a full refill.
Worked example
A 900 km trip with 400 km starting range and 500 km per refill needs one refuelling stop. A 1,000 km trip with the same ranges needs two.
What the result means
This counts refills, not station locations. Use conservative range and check station availability on the route.
Check your result
Results retain calculation precision internally and round for display. Keep the input values with the result so you can reproduce it. Use Reset to restore the example inputs, or Copy result to copy the displayed answer.
If the result does not agree with your own calculation, report the page, inputs and expected answer. See our methodology and reference sources for the standards used.
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Formula, worked example and limitations updated September 10, 2026.