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RC & RL Time Constant Calculator

Determine the time constant τ for RC and RL circuits. Enter resistance with either capacitance, inductance, or both to see how quickly your circuit responds.

What this tool does

RC & RL Time Constant Calculator helps you determine the time constant τ for RC and RL circuits. Enter resistance with either capacitance, inductance, or both to see how quickly your circuit responds.

What you get

RC & RL Time Constant Calculator produces a direct output in this page and keeps all processing on your device, with nothing uploaded to our servers.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

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