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Calcimator

Power Factor Correction Calculator

Calculate the capacitor bank size (KVAR) needed to improve power factor and estimate energy cost savings.

Inputs

kW
V

Results

Required Capacitor Bank

276.62 kVAR

Est. Annual Savings

6,600 $

Current Reactive Power440.96 kVAR
Target Reactive Power164.34 kVAR
I²R Loss Reduction37.67%
How to Use This Calculator
  1. Enter the Real Power (P) in kW — read from your utility bill or an energy meter.
  2. Enter the Current Power Factor from your utility bill or measured with a power analyzer. Most utilities charge penalties below 0.90.
  3. Enter the Target Power Factor — 0.95 is a common target; some utilities require 0.92 minimum.
  4. Enter the System Voltage in volts where the capacitor bank will be installed.
  5. Read the Required Capacitor Bank size in kVAR to order the correct capacitor equipment.
  6. Review the estimated Annual Savings — compare this to capacitor installation cost for a simple payback calculation.
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