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Capacitive Reactance Calculator
Calculate ideal capacitive reactance, capacitance, or frequency from the other two known values.
Inputs
Result
Initializing.
Formula and worked example
XC = 1/(2πfC). Rearranged, C = 1/(2πfXC) and f = 1/(2πCXC). At 1 kHz and 1 µF, ideal XC ≈ 159.154943 Ω. Inputs are normalized to hertz, farads, and ohms before solving.
Limits and safety
These calculations use ideal component models. Verify component ratings and equipment documentation before practical use. These formulas do not determine whether a circuit or installation is safe or code compliant.