Quickly determine the cutoff frequency (fc), resistor (R), or capacitor (C) value for your RC high-pass filter design. Our online High Pass Filter Calculator helps you build circuits that pass high frequencies and attenuate low frequencies efficiently, crucial for audio applications, sensor interfaces, and more.
Formula:
The cutoff frequency (fc) for a first-order RC high-pass filter is calculated using the formula:
fc = 1 / (2πRC)
- fc = Cutoff Frequency (in Hertz, Hz)
- R = Resistance (in Ohms, Ω)
- C = Capacitance (in Farads, F)
- π = Pi (approximately 3.14159)
This formula allows you to find any one value if the other two are known.