Efficiency calculator

The effectiveness of a machine or system is called efficiency. The efficiency is dimensionless. This means there is no unity. It only states what the relationship between effort and benefit or incoming and outgoing energy is. The efficiency can have values between 0 and 1.

To calculate, enter the input value P1 and the output value P2. The values must be given in the same unit of measurement. Then click the 'Calculate' button.

Formeln zum Wirkungsgrad

The formula symbol for the efficiency is η (Greek letter eta). The efficiency can be calculated using power (formula symbol P) or work (formula symbol W).

Efficiency \(\displaystyle η =\frac{P1}{P2}\) or \(\displaystyle η =\frac{W1}{W2}\)