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.

VA to kW calculation formula:

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

How to convert VA to kW in only 1 step.

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 Un-improved Power Factor by Industry:

Industry	Power Factor
Auto Parts	0.75-0.80
Brewery	0.75-0.80
Cement	0.80-0.85
Chemical	0.65-0.75
Coal Mine	0.65-0.80
Clothing	0.35-0.60
Electroplating	0.65-0.70
Foundry	0.75-0.80
Forging	0.70-0.80
Hospital	0.75-0.80
Machine Manufacturing	0.60-0.65
Metalworking	0.65-0.70
Office Building	0.80-0.90
Oil field Pumping	0.40-0.60
Paint Manufacturing	0.65-0.70
Plastic	0.75-0.80
Stamping	0.60-0.70
Steel Works	0.65-0.80
Tool, dies, jigs industry	0.65-0.75

Typical power factor of common household electronics:

Electronics device	Power Factor
Magnavox Projection TV – standby	0,37
Samsung 70″ 3D Bluray	0,48
Digital Picture Frame	0,52
ViewSonic Monitor	0,5
Dell Monitor	0,55
Magnavox Projection TV	0,58
Digital Picture Frame	0,6
Digital Picture Frame	0,62
Digital Picture Frame	0,65
Philips 52″ Projection TV	0,65
Wii	0,7
Digital Picture Frame	0,73
Xbox Kinect	0,75
Xbox 360	0,78
Microwave	0,9
Sharp Aquos 3D TV	0,95
PS3 Move	0,98
Playstation 3	0,99
Element 41″ Plasma TV	0,99
Current large, flat-screen television	0,96
Windows-mount air conditioner	0,9
Legacy CRT-Based color television	0,7
Legacy flat panel computer monitor	0,64
While-LED lighting fixture	0,61
Legacy laptop power adapter	0,55
Laser Printer	0,5
Incandescent lamps	1
Fluorescent lamps (uncompensated)	0,5
Fluorescent lamps (compensated)	0,93
Discharge lamps	0,4-0,6

Typical Motor Power Factors:

Power	Speed	Power Factor
(hp)	(rpm)	1/2 load	3/4 load	full load
0 – 5	1800	0.72	0.82	0.84
5 – 20	1800	0.74	0.84	0.86
20 – 100	1800	0.79	0.86	0.89
100 – 300	1800	0.81	0.88	0.91

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

VA to kW conversion table-chart:

VA	P.f	kW
1 VA	0,75 P.f	0,00075 kW
2 VA	0,75 P.f	0,0015 kW
3 VA	0,75 P.f	0,00225 kW
4 VA	0,75 P.f	0,003 kW
5 VA	0,75 P.f	0,00375 kW
6 VA	0,75 P.f	0,0045 kW
7 VA	0,75 P.f	0,00525 kW
8 VA	0,75 P.f	0,006 kW
9 VA	0,75 P.f	0,00675 kW
10 VA	0,8 P.f	0,008 kW
20 VA	0,8 P.f	0,016 kW
30 VA	0,8 P.f	0,024 kW
40 VA	0,8 P.f	0,032 kW
50 VA	0,8 P.f	0,04 kW
60 VA	0,8 P.f	0,048 kW
70 VA	0,8 P.f	0,056 kW
80 VA	0,8 P.f	0,064 kW
90 VA	0,8 P.f	0,072 kW
100 VA	0,85 P.f	0,085 kW
200 VA	0,85 P.f	0,17 kW
300 VA	0,85 P.f	0,255 kW
400 VA	0,85 P.f	0,34 kW
500 VA	0,85 P.f	0,425 kW
600 VA	0,85 P.f	0,51 kW
700 VA	0,85 P.f	0,595 kW
800 VA	0,85 P.f	0,68 kW
900 VA	0,85 P.f	0,765 kW
1000 VA	0,9 P.f	0,9 kW
2000 VA	0,9 P.f	1,8 kW
3000 VA	0,9 P.f	2,7 kW
4000 VA	0,9 P.f	3,6 kW
5000 VA	0,9 P.f	4,5 kW
6000 VA	0,9 P.f	5,4 kW
7000 VA	0,9 P.f	6,3 kW
8000 VA	0,9 P.f	7,2 kW
9000 VA	0,9 P.f	8,1 kW
10000 VA	0,95 P.f	9,5 kW
20000 VA	0,95 P.f	19 kW
30000 VA	0,95 P.f	28,5 kW
40000 VA	0,95 P.f	38 kW
50000 VA	0,95 P.f	47,5 kW
60000 VA	0,95 P.f	57 kW
70000 VA	0,95 P.f	66,5 kW
80000 VA	0,95 P.f	76 kW
90000 VA	0,95 P.f	85,5 kW
100000 VA	1 P.f	100 kW
200000 VA	1 P.f	200 kW
300000 VA	1 P.f	300 kW
400000 VA	1 P.f	400 kW
500000 VA	1 P.f	500 kW
600000 VA	1 P.f	600 kW
700000 VA	1 P.f	700 kW
800000 VA	1 P.f	800 kW
900000 VA	1 P.f	900 kW
1000000 VA	1 P.f	1000 kW