Enter the inverter input power and the inverter output power into the calculator to determine the Inverter Efficiency.

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## Inverter Efficiency Formula

The following formula is used to calculate the Inverter Efficiency.

**Einverter = IOP / IIP *100**

- Where Einverter is the Inverter Efficiency (%)
- IOP is the inverter input power
- IIP is the inverter output power

## How to Calculate Inverter Efficiency?

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

**Example Problem #1:**

- First, determine the inverter input power. In this example, the inverter input power is given as 300.
- Next, determine the inverter output power. For this problem, the inverter output power is given as 140.
- Finally, calculate the Inverter Efficiency using the equation above:

Einverter = IOP / IIP *100

Inserting the values from above and solving the equation:

Einverter = 140 / 300 *100 = 46.66 (%)

**Example Problem #2: **

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

inverter input power = 400

inverter output power = 200

Entering these values yields:

Einverter = IOP / IIP *100 = 50 (%)