Electrical Tools
Capacitor Calculator
Calculate capacitor size for power factor correction (μF) or capacitor energy (J). Supports kW, kVA input with target power factor.
Input
Result
Required
kVAR
Capacitance
μF
Qc = P × (tan φ1 − tan φ2) | C = Qc / (2π f V²) × 10⁶
Fill in all fields. Target PF must be greater than current PF.
Energy
Charge
mC
E = ½CV² | Q = CV
Enter capacitance and voltage.
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