Enter the theoretical torque (N-m) and the actual torque (N-m) into the calculator to determine the Hydraulic Motor Efficiency.

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## Hydraulic Motor Efficiency Formula

The following formula is used to calculate the Hydraulic Motor Efficiency.

**Ehm = TT / AT *100**

- Where Ehm is the Hydraulic Motor Efficiency (%)
- TT is the theoretical torque (N-m)
- AT is the actual torque (N-m)

## How to Calculate Hydraulic Motor Efficiency?

The following two example problems outline how to calculate the Hydraulic Motor Efficiency.

**Example Problem #1:**

- First, determine the theoretical torque (N-m). In this example, the theoretical torque (N-m) is given as 56.
- Next, determine the actual torque (N-m). For this problem, the actual torque (N-m) is given as 100.
- Finally, calculate the Hydraulic Motor Efficiency using the equation above:

Ehm = TT / AT *100

Inserting the values from above and solving the equation:

Ehm = 56 / 100 *100 = 56 (%)

**Example Problem #2: **

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

theoretical torque (N-m) = 75

actual torque (N-m) = 200

Entering these values yields:

Ehm = 75/ 200*100 = 37.5 (%)