Enter the maximum rotational speed (RPM) and the maximum horsepower (hp) into the calculator to determine the Maximum Torque.

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## Maximum Torque Formula

The following formula is used to calculate the Maximum Torque.

**Tmax = 5252 / RS * HP**

- Where Tmax is the Maximum Torque (lb-ft)
- RS is the maximum rotational speed (RPM)
- HP is the maximum horsepower (hp)

## How to Calculate Maximum Torque?

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

**Example Problem #1:**

- First, determine the maximum rotational speed (RPM). In this example, the maximum rotational speed (RPM) is measured to be 40.
- Next, determine the maximum horsepower (hp). For this problem, the maximum horsepower (hp) is calculated to be 30.
- Finally, calculate the Maximum Torque using the formula above:

Tmax = 5252 / RS * HP

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

Tmax = 5252 / 40 * 30 = 3939 (lb-ft)

**Example Problem #2: **

Using the same process as example problem 1, we first define the variables outlined by the formula. In this case, the values are:

maximum rotational speed (RPM) = 15

maximum horsepower (hp) = 29

Entering these values yields:

Tmax = 5252 / 15 * 29 = 10153.866 (lb-ft)