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.
Watts-VA to Power factor calculation formula:
- Watts=Watt is the unit of power (symbol: W).
- VA=Volt-Ampere.
- P.F=Power factor
How to convert Watts-VA to Power factor in only 1 step.
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)
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.
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
http://www.engineeringtoolbox.com
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 |
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