Watts-VA to FP (power factor) – Formula 3 phase, conversion, calculator

With this tool you can convert online from Watts-VA to Power factor automatically, easily, quickly and free.

For more ease we show how to convert from Watts-VA to Power factor and show the formula that is used for the conversion and a table with the main conversions from Watts-VA to Power factor.

We also show the most common power factors of different constructions, appliances and motors.

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More information on converting from Watts-VA to Power factor:


Watts-VA to Power factor calculation formula:formula from watts va to power factor

 

  • Watts=Watt is the unit of power (symbol: W).
  • VA=Volt-Ampere.
  • P.F=Power factor

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How to convert Watts-VA to Power factor in only 1 step.

watts va to power factor

Step 1.

Divide Watts between VA, for example, if you have a microwave that consumes 1000Watts and 1200VA, you must divide 1000watts between 1200VA, the result will be a power factor of 0.83.  (1000Watts /1200VA = 0,83)

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

Watts: 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 Watts.

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.

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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

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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

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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

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Watts VA to power factor conversion table-chart:

Watts VA P.f
1 Watts 1,33 VA 0,75 Power factor
10 Watts 13,33 VA 0,75 Power factor
20 Watts 26,67 VA 0,75 Power factor
30 Watts 40,00 VA 0,75 Power factor
40 Watts 53,33 VA 0,75 Power factor
50 Watts 66,67 VA 0,75 Power factor
60 Watts 80,00 VA 0,75 Power factor
70 Watts 93,33 VA 0,75 Power factor
80 Watts 106,67 VA 0,75 Power factor
90 Watts 120,00 VA 0,75 Power factor
100 Watts 125,00 VA 0,8 Power factor
200 Watts 250,00 VA 0,8 Power factor
300 Watts 375,00 VA 0,8 Power factor
400 Watts 500,00 VA 0,8 Power factor
500 Watts 625,00 VA 0,8 Power factor
600 Watts 750,00 VA 0,8 Power factor
700 Watts 875,00 VA 0,8 Power factor
800 Watts 1000,00 VA 0,8 Power factor
900 Watts 1125,00 VA 0,8 Power factor
1000 Watts 1250,00 VA 0,8 Power factor
2000 Watts 2352,94 VA 0,85 Power factor
3000 Watts 3529,41 VA 0,85 Power factor
4000 Watts 4705,88 VA 0,85 Power factor
5000 Watts 5882,35 VA 0,85 Power factor
6000 Watts 7058,82 VA 0,85 Power factor
7000 Watts 8235,29 VA 0,85 Power factor
8000 Watts 9411,76 VA 0,85 Power factor
9000 Watts 10588,24 VA 0,85 Power factor
10000 Watts 11764,71 VA 0,85 Power factor
20000 Watts 23529,41 VA 0,85 Power factor
30000 Watts 33333,33 VA 0,9 Power factor
40000 Watts 44444,44 VA 0,9 Power factor
50000 Watts 55555,56 VA 0,9 Power factor
60000 Watts 66666,67 VA 0,9 Power factor
70000 Watts 77777,78 VA 0,9 Power factor
80000 Watts 88888,89 VA 0,9 Power factor
90000 Watts 100000,00 VA 0,9 Power factor
100000 Watts 111111,11 VA 0,9 Power factor
200000 Watts 222222,22 VA 0,9 Power factor
300000 Watts 333333,33 VA 0,9 Power factor
400000 Watts 421052,63 VA 0,95 Power factor
500000  Watts 526315,79 VA 0,95 Power factor
600000  Watts 631578,95 VA 0,95 Power factor
700000 Watts 736842,11 VA 0,95 Power factor
800000 Watts 842105,26 VA 0,95 Power factor
900000 Watts 947368,42 VA 0,95 Power factor
1000000 Watts 1052631,58 VA 0,95 Power factor
1100000 Watts 1157894,74 VA 0,95 Power factor
1200000 Watts 1263157,89 VA 0,95 Power factor
1300000 Watts 1368421,05 VA 0,95 Power factor