Power Factor Correction

Calculate Power Factor Correction instantly with the exact formula and a worked example.

Power Factor Correction

P, kW
cos φ₁
cos φ₂ target
U, V
f, Hz
Q_C needed
6.9152kvar
Q_C = P·(tan φ₁ − tan φ₂)Calculate Power Factor Correction instantly with the exact formula and a worked example.
Q_C
6,92 kvar
C
137,6 µF

More about: Power Factor Correction

What it calculates

The “Power Factor Correction” calculator computes Q_C needed in kvar from 5 parameters: p, kw, cos φ₁, cos φ₂ target, u, v, f, hz.

A standard physics formula used in educational and engineering tasks.

Example calculation

With parameters P, kW = 10, cos φ₁ = 0.7, cos φ₂ target = 0.95, U, V = 400, f, Hz = 50 the result is 6.92 kvar (Q_C = P·(tan φ₁ − tan φ₂)).

How to use

  1. Enter p, kw, cos φ₁, cos φ₂ target, u, v and f, hz — each field above is adjustable with a slider.
  2. Q_C needed (kvar) is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is Power Factor Correction calculated?
The Power Factor Correction calculator computes Q_C needed (in kvar) from p, kw, cos φ₁, cos φ₂ target, u, v, f, hz. Enter your values above and the exact formula is applied instantly; a worked example with real numbers is shown below.
Is the Power Factor Correction calculator free?
Yes. It is completely free, needs no signup, runs entirely in your browser, and sends no data to any server.

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