Is this calculation free and private?

Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.

What does the Op-Amp Gain & Bandwidth Calculator give me?

It works out Linear Voltage Gain, Voltage Gain, Closed-Loop Bandwidth -3dB and Amplifier Noise Gain Factor, updating live as you change the inputs.

What do I need to enter?

Just Feedback Resistor Rf, Input Resistor Rin, Topology and Op-Amp GBWP. Every field has a sensible default you can start from.

Is my data uploaded anywhere?

No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.

Does it work on a phone?

Yes. The layout adapts to small screens and needs no app or signup.

Op-Amp Gain & Bandwidth Calculator

Calculate closed-loop inverting/non-inverting operational amplifier voltage gain (Av and dB) and maximum cutoff bandwidth from GBWP.

100% free
Private in browser
No signup
No watermarks

Feedback Resistor Rf (Ohms Ω)

Input Resistor Rin (Ohms Ω)

Topology (1=Non-Inverting, 0=Inverting)

Op-Amp GBWP (MHz, e.g. 3.0 for TL072)

Linear Voltage Gain (V/V)

Voltage Gain (dB)

20.8

Closed-Loop Bandwidth -3dB (kHz)

272.7

Amplifier Noise Gain Factor

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About Op-Amp Gain & Bandwidth Calculator

Calculate closed-loop inverting/non-inverting operational amplifier voltage gain (Av and dB) and maximum cutoff bandwidth from GBWP. Enter Feedback Resistor Rf, Input Resistor Rin and Topology and the tool works out Linear Voltage Gain, Voltage Gain and Closed-Loop Bandwidth -3dB straight away. Everything runs in your browser, so your data never leaves your device.

How to use Op-Amp Gain & Bandwidth Calculator

Enter Feedback Resistor Rf, Input Resistor Rin and Topology.
Adjust the remaining options (Op-Amp GBWP) to match your case.
Read Linear Voltage Gain, Voltage Gain and Closed-Loop Bandwidth -3dB in the results panel — copy or download what you need.

Key features

Shows Linear Voltage Gain (V/V)
Shows Voltage Gain (dB)
Shows Closed-Loop Bandwidth -3dB (kHz)
4 adjustable inputs, results update as you type
No signup, no limits

Frequently asked questions

Is this calculation free and private?: Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.
What does the Op-Amp Gain & Bandwidth Calculator give me?: It works out Linear Voltage Gain, Voltage Gain, Closed-Loop Bandwidth -3dB and Amplifier Noise Gain Factor, updating live as you change the inputs.
What do I need to enter?: Just Feedback Resistor Rf, Input Resistor Rin, Topology and Op-Amp GBWP. Every field has a sensible default you can start from.
Is my data uploaded anywhere?: No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.
Does it work on a phone?: Yes. The layout adapts to small screens and needs no app or signup.

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