Free CalculatorWiser tool

Inverting Op Amp Gain Magnitude Calculator

Calculate inverting gain magnitude Rf/Rin.

How to use the Inverting Op Amp Gain Magnitude Calculator

Calculate inverting gain magnitude Rf/Rin.

Step-by-step instructions

  1. Enter or select Feedback resistor (Ω).
  2. Enter or select Input resistor (Ω).
  3. Tap Calculate.
  4. Review the result shown directly below the calculator.

What the inputs mean

Feedback resistor (Ω)
Enter the value requested by this field label.
Input resistor (Ω)
Enter the value requested by this field label.

Formula or calculation method

The calculator applies the standard mathematical relationship for the labeled inputs and returns the computed result automatically.

Example

Try entering realistic values for Feedback resistor (Ω) and Input resistor (Ω), then tap Calculate to see how the result changes.

How to understand the result

Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.

Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.