Enter the total kilovolts (kV), the current (amps), and the rotational speed (RPM) into the calculator to determine the Torque from kV. 

Torque from kV Formula

The following formula is used to calculate the Torque from kV.

Tkv = kV*1000*I/(2*pi*RPM)

  • Where Tkv is the Torque from kV (N-m)
  • kV is the total kilovolts (kV) 
  • I is the current (amps) 
  • RPM is the rotational speed (RPM) 

How to Calculate Torque from kV?

The following example problems outline how to calculate the Torque from kV.

Example Problem #1

  1. First, determine the total kilovolts (kV). In this example, the total kilovolts (kV) is given as 5 .
  2. Next, determine the current (amps). For this problem, the current (amps) is given as  13 .
  3. Next, determine the rotational speed (RPM). In this case, the rotational speed (RPM) is found to be 5.
  4. Finally, calculate the Torque from kV using the formula above: 

Tkv = kV*1000*I/(2*pi*RPM)

Inserting the values from above and solving yields: 

Tkv = 5*1000*13/(2*3.1415*5) = 2069.07 (N-m)


Example Problem #2

Using the same method as above, determine the variables required by the equation. For this example problem, these are provided as:

total kilovolts (kV) = 7

current (amps) = 9

rotational speed (RPM) = 7

Enter these given values yields: 

Tkv = 7*1000*9/(2*3.14159*7) = 1432.39 (N-m)