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Capacitor Calculator

Calculate capacitive reactance (Xc) at a given frequency, the energy stored in a capacitor, and the charge/discharge time constants. Covers decoupling, filter, and energy storage applications.

Capacitor Math

Capacitors store electrical charge and energy. Calculate capacitance from charge and voltage, find capacitive reactance (AC opposition) at a given frequency, or determine the energy stored. Essential for filter design, timing circuits, and power factor correction.

+Q−QVC = Q / V

Select a calculation mode and enter values

1 mC = 0.001 C

Enter the required values to calculate.

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