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

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:

1. First, determine the theoretical torque (N-m). In this example, the theoretical torque (N-m) is given as 56.
2. Next, determine the actual torque (N-m). For this problem, the actual torque (N-m) is given as 100.
3. 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 (%)