Op-Amp Gain Calculator

Select inverting or non-inverting configuration, enter resistor values, and get the gain, output voltage, and bandwidth.

Configuration

R1 — Input Resistor (kΩ)

R2 (Rf) — Feedback Resistor (kΩ)

Input Voltage Vin (V)

Gain-Bandwidth Product (MHz)

Voltage Gain

V/V

Gain (dB)

—

Output Voltage

—

-3dB Bandwidth

—

Input Impedance

—

Op-Amp Gain Formulas

Non-Inverting: Gain = 1 + Rf/R1

Inverting: Gain = −Rf/R1

Gain (dB) = 20 × log10(|Gain|)

Bandwidth = GBW / |Gain|