Filter Cutoff Frequency

Calculate Filter Cutoff Frequency instantly with the exact formula and a worked example.

Filter Cutoff Frequency

RkΩ
CµF
Cut-off
15.9155Hz
1/(2π·R·C)Calculate Filter Cutoff Frequency instantly with the exact formula and a worked example.

More about: Filter Cutoff Frequency

What it calculates

The “Filter Cutoff Frequency” calculator computes Cut-off in Hz from 2 parameters: r (kΩ), c (µF).

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters R = 10 kΩ, C = 1 µF the result is 15.92 Hz (1/(2π·R·C)).

How to use

  1. Enter r and c — each field above is adjustable with a slider.
  2. Cut-off (Hz) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Filter Cutoff Frequency calculated?
The Filter Cutoff Frequency calculator computes Cut-off (in Hz) from r, c. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Filter Cutoff Frequency calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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