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Aviation Calculators

Fuel Burn Calculator

Fuel burned over a flight or passage, with reserves and the total to load.

Enter values

Results update as you type.

Result

Total fuel required

123.13 litres

Trip fuel
87.5 litres
Reserve fuel
26.25 litres
Contingency
4.38 litres
Taxi allowance
5 litres
In US gallons
32.53
Endurance on this fuel
3.52 hours

For planning familiarisation only — always follow the aircraft flight manual and the regulations that apply.

About the Fuel Burn Calculator

Fuel burned over a flight or passage, with reserves and the total to load.

Also known as: fuel consumption rate, flight fuel burn, fuel planning calculator, gph calculator.

How to use this calculator

  1. Enter burn rate, flight or passage time, taxi and start allowance, reserve time and the other fields.
  2. The result updates instantly as you type — press Calculate (or Enter) at any time.
  3. Review the breakdown shown under the main result.
  4. Use Copy result or Share to save the answer or send a link with your inputs.

Formula

total = trip + reserve + contingency + taxi

Worked example

Using the values pre-filled in the calculator above:

  • Burn rate = 35 litres/hour
  • Flight or passage time = 2.5
  • Taxi and start allowance = 5 litres
  • Reserve time = 45 min
  • Contingency = 5 %

the calculator returns:

  • Total fuel required: 123.13 litres
  • Trip fuel: 87.5 litres
  • Reserve fuel: 26.25 litres
  • Contingency: 4.38 litres