// multi-utility computation suite · offline · instant · precise
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eng.aircraft-range-breguet Calculator
Calculates aircraft range using the Breguet range equation from specific fuel consumption, L/D ratio, and fuel fraction. The Breguet equation shows that range is proportional to L/D efficiency and inversely proportional to specific fuel consumption — the two primary levers for fuel-efficient aircraft design.
Inputs
Specific Fuel Consumption
Reference formula or conversion factor shown for context.
Lift Drag Ratio
Reference formula or conversion factor shown for context.
Initial Weight Kg
Body or object weight. For health calculators, usually in kg or lbs.
Fuel Weight Kg
Body or object weight. For health calculators, usually in kg or lbs.
Results
range (km)
The difference between the maximum and minimum values.
range (nm)
The difference between the maximum and minimum values.
weight ratio W0/W1
The computed weight (gravitational force) or mass.
Breguet: R = (V/SFC)×(L/D)×ln(W0/W1)
Sample size or count used in the calculation.
typical jet L/D
Reference formula or conversion factor shown for context.