Watts to Volts – Online calculator, some examples, table and formula

With this tool you can calculate and convert in 1 only step from Watts to volts easily and for free.

You will also find the formula used to convert watts to volts, how to convert watts to volts, some illustrated examples and a table with the main conversions from watts to volts, with the most common power factor values in different constructions, appliances and motors.

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Watts to Volts – Online calculator, some examples, table and formula
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More information about converting from watts to volts:


Formula to convert, calculate and transform from watts to volts, single-phase, two-phase and three-phase:

formula watts to volt

  • W DC = Watts DC.
  •  = Watts 1 monophasic.
  •  = Watts 2 biphasic.
  •  = Watts 3 three-phase.
  • L-N = Volts line-neutral.
  • L-L = Volts line-line.
  • AC1Ø = Current / monophase Amps.
  • AC2Ø = Current / Biphasic Amps.
  • AC3Ø = Current / Three- phase Amps.
  • FP = Power factor.

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How to convert from watts to volts in 1 only step:

HOW TO CONVERT FROM WATTS TO VOLTS IN 1 ONLY STEP

Step 1:

In order to perform this conversion you must have the following variables: Current, power factor, and watts. It is easy to divide the watts between the multiplication of the current, the power factor and the root of three, this for the case of three-phase powers. By example: A coffee machine has a power of 3400watts, an amperage of 11,15amp and a power factor of 0.8, which you must do by dividing 3400watt between the multiplication of √3 × 11,15 × 0,8, According to the following formula: 3400 / (√3 × 11.15 × 0.8), the result will be: 220 Volts.

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Examples of conversions from watts to volts:

Example 1:

A monofasico sound equipment has a power of 400watts, with a power factor of 0.93, an amperage of 3.58Amp, the only thing you should do is divide the watts by multiplying the rest of the variables as follows: 400 / (3.58 × 0.93) = 120Volt.

Example 2:

A biphasic ceiling fan has a power of 830Watts, with a power factor of 0.91 and an amperage of 3.8Amp, to find the voltage it should be divided 830 between the multiplication of 2 × 0.91 × 3.8, which will result in: 120Volts.

Example 3:

A three-phase industrial washing machine has a power of 2450watts, a power factor of 0.78 and an amperage of 8.24Ampere, to know the voltage you should divide 2450 / (√3 × 8.24 × 0.78) = 220volts.

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Watts to volts, table, equivalence, transformation (Amperes = 10Amp, Fp = 0.8, AC, 3F):

How many Watts are: Equivalence in Volts
100 Watts Equivalent to 7.22 Volts
200 Watts 14.43 Volts
300 Watts 21.65 Volts
400 Watts 28.87 Volts
500 Watts 36.08 Volts
600 Watts 43.30 Volts
700 Watts 50.52 Volts
800 Watts 57,74 Volts
900 Watts 64.95 Volts
1000 Watts 72.17 Volts
2000 Watts 144.34 Volts
3000 Watts 216.51 Volts
4000 Watts 288.68 Volts
5000 Watts 360.84 Volts
6000 Watts 433.01 Volts
7000 Watts 505.18 Volts
8000 Watts 577.35 Volts
9000 Watts 649.52 Volts
10000 Watts 721.69 Volts
20000 Watts 1443.38 Volts
30000 Watts 2165.06 Volts
40000 Watts 2886.75 Volts
50000 Watts 3608.44 Volts
60000 Watts 4330.13 Volts
70000 Watts 5051.81 Volts
80000 Watts 5773.50 Volts
90000 Watts 6495.19 Volts

Note: The previous conversions take into account a power factor of 0.8, an amperage of 10 Amp and a three-phase AC power. For different variables you should use the calculator that appears at the beginning.

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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

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How to use the watt-to-volt calculator:

Initially you must have the watts you want to convert and the amps and power factor, with that in mind you must go to the initial table and choose the type of current you want AC or DC and the number of phases in case of choosing AC, then you must enter the data shown on the left side of the tool, it is important to check what is requested in the table because according to the requirement you must enter watts 1F, 2F, 3F, then you must enter the factor of power and finally the amperage.