Enter the winding torque (in-lbf) and the winding radius (in) into the Winding Tension Calculator. The calculator will evaluate the Winding Tension. 

Winding Tension Formula

The following two example problems outline the steps and information needed to calculate the Winding Tension.

WT = T / WR


  • WT is the Winding Tension (lbf)
  • T is the winding torque (in-lbf) 
  • WR is the winding radius (in) 

To calculate a winding tension, divide the winding torque by the winding radius.

How to Calculate Winding Tension?

The following steps outline how to calculate the Winding Tension.

  1. First, determine the winding torque (in-lbf). 
  2. Next, determine the winding radius (in). 
  3. Next, gather the formula from above = WT = T / WR.
  4. Finally, calculate the Winding Tension.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

winding torque (in-lbf) = 275

winding radius (in) = 5

WT = T / WR = ?