Enter the resistance and capacitance of a high pass filter into the calculator to determine the cut-off frequency of the filter.

## High Pass Filter Formula

The following formula is used to calculate the cutoff frequency of a high pass filter.

fc = 1 / (2*pi*R*C)

- Where fc is the cutoff frequency (hz)
- R is the resistance
- C is the capacitance

## High Pass Filter Definition

A high pass filter is defined as a circuit or electrical system that only passes signals above a certain cutoff frequency. That is any signal greater than the cut-off will be passed.

## High Pass Filter Example

How to calculate cut-off frequency of a high pass filter?

**First, determine the resistance.**Calculate or measure the total resistance of the filter.

**Next, determine the capacitance.**Calculate of measure the total capacitance of the filter.

**Finally, calculate the high pass filter.**Calculate the frequency of cut-off of the high pass filter using the equation above.

## FAQ

**What is a high pass filter?**

A high pass filter is a circuit or filter that only passes signals above a certain frequency.

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