Enter the AC motor power (kW) and the speed (RPM) into the calculator to determine the AC Motor Torque.

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## AC Motor Torque Formula

The following formula is used to calculate the AC Motor Torque.

**Tac = 9.5488 * ACP /S**

- Where Tac is the AC Motor Torque (N-m)
- ACP is the AC motor power (kW)
- S is the speed (RPM)

## How to Calculate AC Motor Torque?

The following two example problems outline how to calculate the AC Motor Torque.

**Example Problem #1:**

- First, determine the AC motor power (kW). In this example, the AC motor power (kW) is given as 15.
- Next, determine the speed (RPM). For this problem, the speed (RPM) is given as 40.
- Finally, calculate the AC Motor Torque using the equation above:

Tac = 9.5488 * ACP /S

Inserting the values from above and solving the equation with the imputed values gives:

Tac = 9.5488 * 15 /40 = 3.5808 (N-m)

**Example Problem #2: **

Using the same process as above, first define the variables required by the formula. In this case, these values are:

AC motor power (kW) = 41

speed (RPM) = 100

Entering these values yields:

Tac = 9.5488 * ACP /S = 3.91508 (N-m)