Quick answer
On many motorboats, a few knots can change fuel burn sharply. That is why SkipperCalc uses speed and litres per hour, not a generic average.
- Use measured burn at a specific speed whenever possible.
- If you choose a boat from the picker, we only interpolate inside tested speeds.
- To compare speeds, look at cost per mile, not only litres per hour.
Base formula: litres = distance ÷ speed × fuel burn L/h
cost = litres × price per litre
cost = litres × price per litre
Calculate your case
Use the calculator below with your distance, speed, fuel burn and price. Starting values are examples, not recommended settings.