Enter the total thrust (N) and the total weight (kg) into the Thrust to Weight Ratio Calculator. The calculator will evaluate and display the Thrust to Weight Ratio. 

Thrust to Weight Ratio Formula

The following formula is used to calculate the Thrust to Weight Ratio. 

TWR = T / W

  • Where TWR is the Thrust to Weight Ratio (N/kg)
  • T is the total thrust (N) 
  • W is the total weight (kg) 

How to Calculate Thrust to Weight Ratio?

The following example problems outline how to calculate Thrust to Weight Ratio.

Example Problem #1:

  1. First, determine the total thrust (N). 
    • The total thrust (N) is given as: 10000.
  2. Next, determine the total weight (kg). 
    • The total weight (kg) is provided as: 500.
  3. Finally, calculate the Thrust to Weight Ratio using the equation above: 

TWR = T / W

The values given above are inserted into the equation below and the solution is calculated:

TWR = 10,000 / 500 = 20 (N/kg)


Example Problem #2: 

For this problem, the variables required are provided below:

total thrust (N) = 50000

total weight (kg) = 2000

Test your knowledge using the equation and check your answer with the calculator above.

TWR = T / W = ?