Enter the total sensitivity (dB) into the calculator to determine the Speaker Efficiency.

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## Speaker Efficiency Formula

The following formula is used to calculate the Speaker Efficiency.

**Es = 10 ^ [(S – 112)/10]**

- Where Es is the Speaker Efficiency (%)
- S is the total sensitivity (dB)

## How to Calculate Speaker Efficiency?

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

**Example Problem #1:**

- First, determine the total sensitivity (dB). In this example, the total sensitivity (dB) is given as 105.
- Finally, calculate the Speaker Efficiency using the equation above:

Es = 10 ^ [(S – 112)/10]

Inserting the values from above and solving the equation:

Es = 10 ^ [(105 – 112)/10] = .199 (%)

**Example Problem #2: **

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

total sensitivity (dB) = 102

Entering these values yields:

Es = 10 ^ [(102- 112)/10] = .1 (%)