Fuel Calculator
Calculate fuel requirements and aircraft range
Flight planningDiversionReserve check
Running out of fuel is the one emergency with no recovery.
VFR day minimums require 30 minutes reserve at cruise power. Night adds another 30. Factor in taxi, climb, and alternate routing — the numbers add up faster than the gauge goes down.
Flight Parameters
NM
knots
gal/hr
Enter to calculate maximum range
gal
Enter values above to see results
Fuel Planning Notes
EASA NCO.OP.125 Fuel Reserves:
- VFR Local (A-A): 10 min - remaining in sight of departure aerodrome
- VFR Cross-country: 30 min at normal cruise
- VFR Night: 45 min at normal cruise
- IFR: 45 min at holding speed (piston aircraft)
Note: This calculator provides estimates only. Always refer to your aircraft POH for accurate fuel consumption data and consider wind, altitude, and temperature effects.
Fuel Required
Fuel = (Dist ÷ TAS) × GPH + Reserve
Fuel— Total fuel required (gal or L)
Dist— Distance to destination (nm)
TAS— True airspeed or groundspeed (kt)
GPH— Fuel burn rate (gallons or litres per hour)
Reserve— Reserve fuel per EASA minima