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Filter Cutoff Frequency

Calculate Filter Cutoff Frequency instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

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. Free online calculator — no signup, works on mobile.

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 the parameter values — every field above is adjustable with a slider.
  2. The result and related metrics are calculated automatically as you type.
  3. Use the additional metrics shown (if any) where needed.
  4. Copy the result or bookmark the page.

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