Thrust to Weight Ratio Calculator - Engineering Calculator Box

Thrust to Weight Ratio:
T/W = Thrust / Weight
Takeoff T/W > 0.25 for conventional aircraft
Fighter aircraft: T/W > 1.0
Rocket engines: T/W > 50

Vehicle Type

Total Thrust (kN)

Gross Weight (kg)

Fuel Weight (kg) Enter 0 for weight without fuel

Payload Weight (kg) Passengers, cargo, etc.

Operating Altitude (m) 0 = sea level, higher = reduced thrust

Gravity Factor Standard gravity: 9.80665 m/s²

Enter aircraft/rocket parameters to calculate thrust-to-weight ratio.