kVA to Watts – How to calculate, examples, table and formula

Automatic calculator from kVA to Watts. Explanation of the formula used for the calculation, how to convert Watts to kVA in 1 step , some examples and a table with the main conversions from kVA to Watts.

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

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kVA to Watts – How to calculate, examples, table and formula
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More information about converting from kVA to Watts:


Formula to convert, calculate, transform kVA to Watts:formula kva to watts

  • W = Watts or Watt.
  • Fp = Power factor.
  • kVA = Kilovolt-Amperes.

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How to convert from kVA to Watts in 1 step only:

How to convert from kVA to Watts in 1 step only

Step 1:

To convert from kVA to Watts you must multiply the kVA by the power factor (FP) and then by 1000. If you do not know the power factor of the load, you can consult the most common fp on this website: https://www.calculatorsconversion.com/es/factor-de-power-motores-construcciones-electrodomesticos/

For example, an electric motor has a power of 45kVA, with a power factor of 0.88, to convert to Watts the power that is in kVA must be multiplied 45kVA by 0.88 and then by 1000, as follows 45kVAx0.88 × 1000 = 39600Watts.

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Examples of conversions from kVA to Watts, three-phase, biphasic and monophasic:

Example 1:

An extractor of a tunnel has a power of 34kVA, with a power factor of 0.81, how many Watts does this motor have?

Answer: // To know the answer you must multiply 34kVA by the power factor and then by a thousand, as follows: 34 × 0.81 × 1000 = 27540Watts.

Example 2:

An industrial laser printer has a power of 2.7kVA, with a power factor of 0.92, how many Watts does the printer have?

Answer: // The first thing to do is multiply the 2.7kVA by the power factor and then by 1000, the result will be: 2.7 × 0.92 × 1000 = 2484Watts, as you can see the higher the factor of higher power will be Watts, remember that the power factor can not be greater than 1.

Example 3:

An industrial equipment has a power of 18.3kVA, with a power factor of 0.86, how many Watts will the equipment have?

Answer: // To know the kVA, the Watts must be divided between the multiplication of the power factor and 1000, giving as a result: 18.3 × 0.88 × 1000 = 15738 Watts.

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kVA to Watts, conversion table, equivalence, transformation (power factor = 0.80):

How many kVA are: Equivalence in Watts:
1 kVA Equals 800 Watts
2 kVA 1600 Watts
3 kVA 2400 Watts
4 kVA 3200 Watts
5 kVA 4000 Watts
6 kVA 4800 Watts
7 kVA 5600 Watts
8 kVA 6400 Watts
9 kVA 7200 Watts
10 kVA 8000 Watts
20 kVA 16000 Watts
30 kVA 24000 Watts
40 kVA 32000 Watts
50 kVA 40000 Watts
60 kVA 48000 Watts
70 kVA 56000 Watts
80 kVA 64000 Watts
90 kVA 72000 Watts
100 kVA 80000 Watts
200 kVA 160000 Watts
300 kVA 240000 Watts
400 kVA 320000 Watts
500 kVA 400000 Watts
600 kVA 480000 Watts
700 kVA 560000 Watts
800 kVA 640000 Watts
900 kVA 720000 Watts

Note : The conversions of the previous table were made taking into account a power factor of 0.8, for different power factors the calculator that appears at the beginning must be used.

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Typical power factor for engines, constructions and appliances.

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