Non-Inverting Op-Amp Gain Calculator
Calculate voltage gain and output of a non-inverting op-amp configuration.
kΩ
kΩ
V
Voltage Gain
10.00 V/V
Gain (dB)20.00 dB
Output Voltage10.000 V
Voltage Gain vs Ground Resistor (R1)
Non-Inverting Op-Amp Configuration
Formula
Gain = 1 + Rf / R1
V_out = (1 + Rf / R1) x V_in
Output is in phase with input. Minimum gain is 1. Input impedance is very high, set by the op-amp input stage.
Example Calculation
R1 = 10k, Rf = 90k, input signal is 1 V.
- 01Gain = 1 + 90 / 10 = 10 V/V
- 02Gain in dB = 20 x log10(10) = 20 dB
- 03V_out = 10 x 1 = 10 V
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