Op-Amp Gain Calculator

Gain and output voltage of inverting and non-inverting operational amplifier circuits.

How to use the Op-Amp Gain Calculator

Enter or select: Feedback resistor Rf, Input resistor Rin (R1), Input voltage.
The results (Inverting gain, Inverting output, Non-inverting gain, Non-inverting output) are calculated instantly as you type.
Use “Copy link” to share the calculation with the same input values.

Formula

Inverting: G = −Rf/Rin
Non-inverting: G = 1 + Rf/R1