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Power Factor Correction Capacitor Calculator

Find the exact capacitor size in µF needed to correct a lagging power factor to a target value in AC electrical systems. Widely used by electrical engineers designing industrial motor circuits and utility billing compliance solutions.

Real Power (kW) (kW)

Current Power Factor

Target Power Factor

System Voltage

System Frequency

Fill in the required fields to see your result.

Electrical

Capacitor Energy Storage Calculator

Calculates the energy stored, charge held, or RC time constant for a capacitor given its capacitance, voltage, and series resistance. Useful for power supply design, timing circuits, and energy storage projects.

Capacitance (μF)

Voltage (V)

Series Resistance (Ω)

Calculate

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Key differences

	Power Factor Correction Capacitor Calculator	Capacitor Energy Storage Calculator
Category	Electrical	Electrical
Inputs required	5	4
Result	Required Capacitance (µF)	Result (J/C/s)
What it does	Find the exact capacitor size in µF needed to correct a lagging power factor to a target value in AC electrical systems. Widely used by electrical engineers designing industrial motor circuits and utility billing compliance solutions.	Calculates the energy stored, charge held, or RC time constant for a capacitor given its capacitance, voltage, and series resistance. Useful for power supply design, timing circuits, and energy storage projects.