Alternating Current
Capacitive Reactance Calculator
Capacitive Reactance converts the entered electrical measurements into capacitive reactance. Use it to calculate ideal capacitive reactance.
Enter values for capacitive reactance
Use one consistent electrical operating case for all fields.
How Capacitive Reactance works
This worksheet evaluates XC = 1 ÷ (2πfC). Capacitive Reactance uses Frequency, Capacitance to report Capacitive reactance.
With the loaded values, capacitive reactance evaluates to 26.53 Ω. Use separate cases for competing input values.
Inputs for Capacitive Reactance
Frequency and Capacitance belong to Capacitive Reactance. Keep source units with frequency. Bandwidth belongs in the separate Resonance Bandwidth worksheet.
Use the defaults to understand the output, then enter the real circuit or energy data.
- Frequency
- Example entry: 60 Hz.
- Capacitance
- Example entry: 100 µF.
Reading the Capacitive Reactance result
This output represents Capacitive Reactance.
Compare the output with equipment limits and the applicable design margins. For total harmonic distortion, use Total Harmonic Distortion Calculator.
Measurement and units
Use RMS quantities unless a field explicitly asks for peak amplitude. Check prefixes on frequency.
Do not compare cases built from different unit prefixes or measurement locations.
Limits of this calculation
Equivalent series resistance and tolerance are outside the ideal model.
Unlisted circuit behavior remains outside the computed result. Unentered effects remain outside Capacitive Reactance.
Questions about Capacitive Reactance
What does Capacitive Reactance calculate?
Capacitive Reactance reports capacitive reactance.
Can Frequency be zero?
For Capacitive Reactance, measure any zero frequency directly.
Why can capacitive reactance differ from measurement?
Equivalent series resistance and tolerance are outside the ideal model. Recheck frequency.