Specific Fuel Consumption (SFC) Calculator

Calculate engine efficiency and fuel consumption for aircraft and rocket propulsion systems.

Inputs

SFC Formulas:
TSFC = ṁ_fuel / Thrust (kg/s/N)
BSFC = ṁ_fuel / Power (kg/s/W)
Fuel Efficiency = 1 / TSFC × 3600 / (Fuel Energy Density)
Endurance = Fuel Mass / Fuel Flow Rate
Required for BSFC calculation
For endurance calculation
Typical cruise altitude: 11,000m
For thermal efficiency calculation
Jet fuel: 43, Gasoline: 44, Hydrogen: 120 MJ/kg

Results

Enter engine parameters to calculate specific fuel consumption and efficiency.

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