Capacitor Sizing Calculator — Free Online Calculator
Calculate the capacitor kVAR needed for power factor correction. Reduce electricity bills and improve system efficiency.
How to Use This Calculator
Enter your load in kW, current power factor, and target power factor.
The Formula Explained
kVAR = kW × (tan(arccos(PF_current)) - tan(arccos(PF_target))). This is the reactive power that must be supplied by capacitors to improve the power factor.