MAXScanner electronics calculator
Updated 2026-09-16
Op-Amp Gain Calculator — Inverting & Non-Inverting Output
Calculate ideal closed-loop op-amp gain and ideal output voltage for inverting or non-inverting resistor networks.
Inputs
Results
Ideal gain -1
Ideal output -1 V
Gain magnitude 1
More actions
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Your calculation, step by step
- 1.Ideal gain (Inverting) = −Rf/Rin = -1.
- 2.Ideal output: Vout = gain × Vin = -1 × 1 = -1 V.
Formula, example and limits
Inverting Av=−Rf/Rin; non-inverting Av=1+Rf/Rg; Vout=Av×Vin.
Rf=10 kΩ and Rin=2 kΩ gives ideal inverting gain -5.
- Ideal negative-feedback op amp in its linear region.
- Actual output swing, bandwidth and slew rate depend on the device and supply rails.
Frequently asked questions
Why is inverting gain negative?
The minus sign represents a 180-degree polarity inversion relative to the input.
Can the ideal result exceed real supply rails?
Yes. This calculator reports the ideal equation only; compare the result with the selected op-amp supply rails and output-swing limits.