Calculate fuel used, fuel flow, or flight time using any two known values. This free aviation calculator helps pilots with fuel planning, reserve checks, and flight management.
Enter any two values below and leave the one you want to calculate blank. Time is entered in hours and minutes.
This calculator is useful for planning fuel requirements, estimating endurance, and checking expected fuel use during a flight.
A fuel burn calculator helps pilots determine how much fuel will be used over a given time, how long a known amount of fuel will last, or what fuel flow rate is being used.
It is one of the most useful aviation planning tools because fuel management is central to safe flight planning, reserve calculations, and in-flight decision making.
This calculator uses gallons for fuel quantity, gallons per hour for fuel flow, and hours/minutes for time.
Yes, but you should always add the required reserve for your operation and use approved aircraft data.
Not always. Fuel flow can change with power setting, altitude, mixture, and phase of flight. This calculator is best used with the fuel flow value appropriate to the phase you are planning.
Accurate fuel planning helps pilots stay within safe operating margins, avoid fuel exhaustion, and make better flight decisions.