## Power factor calculator

We are offering the Power factor calculator, you can simply calculate the value of power factor, reactive power, apparent power, and the value of correction capacitor’s capacitance.

- Select the value of phase number.
- Then enter the value of real power measured in kilowatts (kW).
- Enter the value of phase current in amps (A).
- For the three phase, all you need is to select the voltage type.
- The next step is to enter the value of voltage in volts (V).
- Then enter the AC frequency measured in Hertz (Hz) which is needed only for the capacitance calculation.
- Hit the = button to obtain the power factor.

The value power factor correction capacitor need to be connected parallel to each phase load.

## Single phase circuit calculation

You can easily make Power factor calculation here, check now!

**PF = |cos φ| = 1000 × P _{(kW)} / (V_{(V)} × I_{(A)})**

The Apparent power calculation can be easily calculated as,

**|S _{(kVA)}| = V_{(V)} × I_{(A)} / 1000**

The Reactive power calculation can be done with this formula,

**Q _{(kVAR)} = √(|S_{(kVA)}|^{2} – P_{(kW)}^{2})**

The factor Power factor correction capacitor’s capacitance calculation:

**C _{(F)} = 1000 × Q_{(kVAR)} / (2πf_{(Hz)}×V_{(V)}^{2})**

## Three phase circuit calculation

To calculate the three phase with balanced loads, use this formula!

### Calculation with line to line voltage

The Power factor calculation,

**PF = |cos φ| = 1000 × P _{(kW)} / (√3 × V_{L-L(V)} × I_{(A)})**

The Apparent power calculation,

**|S _{(kVA)}| = √3 × V_{L-L(V)} × I_{(A)} / 1000**

The Reactive power calculation,

**Q _{(kVAR)} = √(|S_{(kVA)}|^{2} – P_{(kW)}^{2})**

The Power factor correction capacitor’s capacitance can be calculated,

**C _{(F)} = 1000 × Q_{(kVAR)} / (2πf_{(Hz)}×V_{L-L(V)}^{2})**

### Calculation with line to neutral voltage

The Power factor calculation,

**PF = |cos φ| = 1000 × P _{(kW)} / (3 × V_{L-N(V)} × I_{(A)})**

The Apparent power calculation,

**|S _{(kVA)}| = 3 × V_{L-N(V)} × I_{(A)} / 1000**

The Reactive power calculation,

**Q _{(kVAR)} = √(|S_{(kVA)}|^{2} – P_{(kW)}^{2})**

The Power factor correction capacitor’s capacitance can be calculated,

**C _{(F)} = 1000 × Q_{(kVAR)} / (3×2πf_{(Hz)}×V_{L-N(V)}^{2})**