Amp to watts – Conversion, equation, table, convert and calculator free.

With this calculator you can convert from Amp to Watts easily, quickly and free any electric power, the calculation takes into account the power factor.

The calculation takes into account the power factor of the electrical system and give the most common values.

We also show the formula that is used for the conversion and a table with the main conversions from Amp to Watts.

Definition P.F, Amperes and P (Watts):

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.

Ampere: Amperage is a term often used by electricians, and means electrical current, measured in amperes, or amps. The ampere is the SI unit for electrical current, or the amount of electrical charge that flows through a conductor in a given time. One ampere is a charge of one coulomb — about 6.241 X 1018 electrons — per second flowing past a given point.

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.

Amp to Watts calculation formula:Formula from convert Amperes to Watts

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

Amp to Watts conversion table:

Amp Phase P.f Volt Watts
1Amp 3P 0,8P.f 208Volt 288,21Watts
2Amp 3P 0,8P.f 208Volt 576,4Watts
3Amp 3P 0,8P.f 208Volt 864,63Watts
4Amp 3P 0,8P.f 208Volt 1152,8Watts
5Amp 3P 0,8P.f 208Volt 1441Watts
6Amp 3P 0,8P.f 208Volt 1729,2Watts
7Amp 3P 0,8P.f 208Volt 2017,4Watts
8Amp 3P 0,8P.f 208Volt 2305,7Watts
9Amp 3P 0,8P.f 208Volt 2593,9Watts
10Amp 3P 0,8P.f 208Volt 2882,1Watts
20Amp 3P 0,85P.f 220Volt 6477,8Watts
30Amp 3P 0,85P.f 220Volt 9716,8Watts
40Amp 3P 0,85P.f 220Volt 12955,7Watts
50Amp 3P 0,85P.f 220Volt 16194,6Watts
60Amp 3P 0,85P.f 220Volt 19433,6Watts
70Amp 3P 0,85P.f 220Volt 22672,5Watts
80Amp 3P 0,85P.f 220Volt 25911,4Watts
90Amp 3P 0,85P.f 220Volt 29150,4Watts
100Amp 3P 0,85P.f 220Volt 32389,3Watts
200Amp 3P 0,9P.f 440Volt 137178,4Watts
300Amp 3P 0,9P.f 440Volt 205767,6Watts
400Amp 3P 0,9P.f 440Volt 274356,8Watts
500Amp 3P 0,9P.f 440Volt 342946Watts
600Amp 3P 0,9P.f 440Volt 411535,2Watts
700Amp 3P 0,9P.f 440Volt 480124,4Watts
800Amp 3P 0,9P.f 440Volt 548713,6Watts
900Amp 3P 0,9P.f 440Volt 617302,9Watts
1000Amp 3P 0,9P.f 440Volt 685892,1Watts
1100Amp 3P 0,95P.f 480Volt 868796,68Watts
1200Amp 3P 0,95P.f 480Volt 947778,2Watts
1300Amp 3P 0,95P.f 480Volt 1026759,7Watts
1400Amp 3P 0,95P.f 480Volt 1105741,2Watts
1500Amp 3P 0,95P.f 480Volt 1184722,7Watts
1600Amp 3P 0,95P.f 480Volt 1263704,2Watts