Volts to Watts – Calculator, how to convert, examples, table formula

With this calculator you can convert in a single step from Volts to Watts automatically, easily, quickly and for free.

We also explained that the formula should be used to convert from volts to watts, how convert from volts to watts in 1 single step, some illustrated examples of volts to watts and a table with the main conversions from volts to watts.

Most common power factor values ​​in different constructions, appliances and motors.

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

Formula convert from volts to watts

  • W DC = Watts DC (direct current).
  •  = Watts 1 phase.
  •  = Watts 2 phases.
  •  = Watts 3 phases.
  • 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.

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

how to convert volt to Watts

Step 1:

You only have to multiply the variables shown in the formula, according to the type of DC or AC current and the number of phases. Byexample: A biphasic coffee machine has a voltage of 240V (AC, LN), a power factor of 0.81 and a current of 5.4Amp, how many watts does the coffee machine have? To know the answer you just have to take the formula to find biphasic watts by multiplying the variables in the following way: 2x240x5,4 × 0.81 = 2099.52Watts (Formula: V (LN) xIxF.Px2 = watts).

Examples of conversions from volts to Watts:

Example 1:

A single-phase vacuum has an AC voltage of 127 volts (LN), 4.3 Amps and a power factor of 0.92, how many watts does the vacuum have?

Rta: // The first thing to do is identify the formula to be used, because the equipment is single-phase and AC (alternating current), you should use the formula: V (LN) xIxF.P, replacing the variables would be: 127Vx4.3 × 0.92 = 502.41Watts.

Example 2:

A biphasic hair dryer has an AC voltage of 220V (LL), an amperage of 8Amperes and a power factor of 0.96, which will be the power in watts of the hair dryer ?.

Rta: // Take the formula for two-phase equipment (Formula: 2xV (LN) xIxF.P = watts), because we have the LL voltage, we must pass it to LN, in the following way: multiply 220V (LL) / √3 = 127V (LN), this is the way in which the voltage from Linea-Linea to Linea-Neutro is converted, then we simply multiply the variables that appear in the formula: 2x127x8x0,96 = 1950Watts.

Example 3:

The lighting of an industry has a three-phase voltage of 480Volts (LL), a power factor of 0.87 and an amperage of 200Amp, how many Watts does the lighting have ?.

Rta: // As it is a three-phase illuminaicon, the formula must be taken: (√3xV (LL) xIxF.P = watts), then replacing the variables I get: √3x480x200x0,87 = 144,660Watts.

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

How many Volts are:Equivalence in Watts
120 VoltsEquivalent to 1662.77 Watts
127 Volts1759.76 Watts
220 Volts3048.41 Watts
240 Volts3325.54 Watts
277 Volts3838.22 Watts
440 Volts6096.82 Watts
600 Volts8313.84 Watts
1000 Volts13856.41 Watts
1500 Volts20784.61 Watts
4160 Volts57642.65 Watts
5000 Volts69282.03 Watts
7620 Volts105585.82 Watts
8000 Volts110851.25 Watts
11400 Volts157963.03 Watts
13200 Volts182904.57 Watts
15000 Volts207846.10 Watts
22000 Volts304840.94 Watts
25000 Volts346410.16 Watts
30000 Volts415692.19 Watts
34500 Volts478046.02 Watts
35000 Volts484974.23 Watts
40000 Volts554256.26 Watts
46000 Volts637394.70 Watts
57500 Volts796743.37 Watts
66000 Volts914522.83 Watts
69000 Volts956092.05 Watts
115000 Volts1593486.74 Watts
138000 Volts1912184.09 Watts
230000 Volts3186973.49 Watts

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.

Most common and typical power factors for buildings, appliances and motors.

Typical power factor uncorrected in different constructions:

buildingsPower factor
Auto parts0.75-0.80
Coal mine0.65-0.80
Machine manufacturing0.60-0.65
Metallurgy 0.65-0.70
Office building0.80-0.90
Oil pumping0.40-0.60
Paint Manufacturing0.65-0.70
Work with Steel0.65-0.80

Typical power factor without correction in household appliances:

Electronic equipment Power factor
Magnavox Projection TV – standby0.37
Samsung 70 “3D Bluray0.48
Digital photo frame0,52
ViewSonic Monitor0.5
Dell Monitor0.55
Projector Magnavox Projection TV0.58
Digital photo frame0.6
Digital photo frame0.62
Digital photo frame0.65
Projector Philips 52 “Projection TV0.65
Wii video game console0.7
Digital photo frame0.73
Xbox Kinect video game console0.75
Xbox 360 video game console0.78
Television Sharp Aquos 3D TV0.95
PS3 Move video game console0.98
Playstation 3 video game console0.99
Element TV 41 “Plasma TV0.99
Current large, flat-screen television0.96
Window air conditioner0.9
Legacy color television CRT-Based color television0.7
Computer monitor Legacy flat panel computer monitor0.64
White LED luminaire0.91
Portable adapter0.55
Laser printer0.5
Incandescent lamp1
Fluorescent lamp (uncompensated)0.5
Fluorescent lamp (compensated)0.93
Discharge lamp0.4-0.6

Typical power factors uncorrected in motors:

Horse powerSpeedPower factor
()(rpm)1/2 load3/4 loadFull load
0 – 518000.720.820.84
5 – 2018000.740.840.86
20 – 10018000.790.860.89
100 – 30018000.810.880.91

Reference // Power Factor in Electrical Energy Management-A. Bhatia, BE-2012 
Power Factor Requirements for Electronic Loads in California- Brian Fortenbery, 2014 

How to use the calculator from Volts to Watts:

Initially you must 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 review what is requested in the table due to the fact that according to what is required, line-line or neutral-line voltage must be input, then you must enter the power factor and finally the amperage.

Qualify Calculator from Volts to Watts:  [kkstarratings]