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# High Pass Filter Calculator

High pass filter calculator is an easy-to-use tool to quickly determine the cutoff frequency of a high pass passive filter. A high pass filter removes lower-frequency components from a given AC signal.

This calculator allows you to choose filter circuit: RC filter or RL filter.

## RC high pass passive filter

The RC high pass passive filter consists of a resistor and a capacitor.

Cutoff frequency formula: fc = 1 / 2πRC

To calculate a particular parameter of a circuit (e.g. cutoff frequency (fc), resistance (R) value or capacitance (C) value) click on the corresponding parameter on the figure and then enter all the necessary values:

• If you specify resistance (R) value and capacitance (C) value the cutoff frequency will be calculated;
• If you specify cutoff frequency (fc) value and capacitance (C) value the resistance (R) value will be calculated;
• If you specify cutoff frequency (fc) value and resistance (R) value the capacitance (C) value will be calculated.

## RL high pass passive filter

The RL high pass passive filter consists of a resistor and a inductor.

Cutoff frequency formula: fc = R / 2πL

To calculate a particular parameter of a circuit (e.g. cutoff frequency (fc), resistance (R) value or inductance (L) value) click on the corresponding parameter on the figure and then enter all the necessary values:

• If you specify resistance (R) value and inductance (L) value the cutoff frequency will be calculated;
• If you specify cutoff frequency (fc) value and inductance (L) value the resistance (R) value will be calculated;
• If you specify cutoff frequency (fc) value and resistance (R) value the inductance (L) value will be calculated.

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08/10/1839
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