# VA to kW – How to calculate, conversion, formula, equation and chart

For the conversion from VA to kW, it is only required to use the quick calculator or the formula that we show in this article.

In addition to the formula, we also explain some examples , an equivalence table and the step by step on how to convert from VA to kW.

Mas información:

## VA to kW calculation formula:

• kW=One kilowatt is equal to 1000 watts.
• VA=Volt-Ampere.
• P.F=Power factor

## Step 1.

Multiplicar VA por el factor de potencia (F.P). Consulte los factores de potencia comunes en este sitio web: http://calculatorsconversion.com/es/los-valores-de-poder-de-poder-%E2%80%8B%E2%80%8Bfor-the-most-common/.

Por ejemplo, si usted tiene un microondas que consume 1200VA y tiene un factor de potencia de 0,9, entonces usted debe multiplicar 1200VA por 0,9 para obtener 1080Watts. (1200VA /0.9 = 1080Watts).

Divida el paso 1 entre 1000, el resultado sera en kW. 1080W/1000=1,08kW.

## Definition P.F, S (VA) and P (kW):

kW: is Working Power (also called Actual Power or Active Power or Real Power). It is the power that actually powers the equipment and performs useful work.

The real power in watts is the power that performs work or generates heat. Power in watts is the rate at which energy is consumed (or generated). One watt is one joule (energy) per second (1 W = 1 J/s).

Resistive devices or loads such as heaters, incandescent lamps are rated in kW.

VA: A Volt-ampere, commonly referred to as a VA, is commonly used as a unit of power in obtaining the electrical capacity of circuit breakers, uninterrupted power supplies and wirings.

VA is larger than Watts because loads are inductive such as motors, discharge lighting, reactors and more current is required to keep the magnetic field energized than is -turned into heat (Watts).

Inductive devices or loads such,. as tansformers and motors having power factor less than 1.0 are generally rated in VA.

P.F: Power factor is the ratio of working power to apparent power. It measures how effectively electrical power is being used. A high power factor signals efficient utilization of electrical power, while a low power factor indicates poor utilization of electrical power.

Power Factor is the cosine of the phase angle between current and voltage.
Power Factor is the ratio of true power to apparent power.

## Typical Motor Power Factors:

Reference // Power Factor in Electrical Energy Management-A. Bhatia, B.E.-2012
Power Factor Requirements for Electronic Loads in California- Brian Fortenbery,2014
http://www.engineeringtoolbox.com