Enter the effort force (N) and the load force (N) into the calculator to determine the Winch Efficiency.

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## Winch Efficiency Formula

The following formula is used to calculate the Winch Efficiency.

**Ew = EF / LF * 100**

- Where Ew is the Winch Efficiency (%)
- EF is the effort force (N)
- LF is the load force (N)

## How to Calculate Winch Efficiency?

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

**Example Problem #1:**

- First, determine the effort force (N). In this example, the effort force (N) is given as 528.
- Next, determine the load force (N). For this problem, the load force (N) is given as 625.
- Finally, calculate the Winch Efficiency using the equation above:

Ew = EF / LF * 100

Inserting the values from above and solving the equation:

Ew = 528 / 625 * 100 = 84.48 (%)

**Example Problem #2: **

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

effort force (N) = 70

load force (N) = 80

Entering these values yields:

Ew = 70 / 80 * 100 = 87.5 (%)