Verify before flight. Check the POH/AFM for aircraft-specific limits and performance.
Weight & Balance
Fuel Weight Calculator
Convert aviation fuel volume to approximate weight using an entered fuel density, with pounds, kilograms, and liters shown.
US gal
lb/gal
Fuel weight—
Kilograms—
Liters—
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40 gallons at 6 lb/gal
40 U.S. gal at an entered density of 6 lb/gal weighs 240 lb, about 108.9 kg. Volume is about 151.4 L.
Fuel density varies with fuel type and temperature. Use the density specified by the aircraft loading instructions; gallons cannot be entered directly as pounds.
Formula and method
Fuel weight = volume × entered fuel density.