Volt-amps (VA) to Watts (W) Conversion Calculator

volt-ampere(VA) is the product of voltage and current. VA to watts Conversion Calculator. VA to Watts Formula Conversion Calculator is an online tool. The Real power (P) in watts (W) is equal to the apparent power (S) in volt-amps (VA), times the power factor (Pf).

Va To Watts Calculator

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Conversion using the VA to Watts Formula

VA to Watts Calculation formula

The Real Power P in watts w is calculated as the Apparent Power S in volt-amps VA, times the power factor in pf. Plug these values into the formula:

Real Power(P) = Apparent Power(S) × Power factor(pf)

or, P(W) = S(VA) × pf

or, Watts = VA × pf

For Example, A load connected to a transformer draws apparent power 2800 VA at a 0.80 power factor. Calculate the Real Power in Watts of the load.

How to use VA to Watts Calculator?

To use the above "VA to Watts Conversion Calculator" follow the below steps:

1. Enter Apparent Power: Input the Apparent Power in VA value in the specified input box. You can enter the value in VA or KVA by choosing the appropriate option from the dropdown.

2. Enter Power Factor: Input the power factor of the Load in the provided input box. The power factor is a unitless value typically between 0 and 1.

Fig-2: How to Use VA to Watts Calculator

3. Reset: Click the Reset If you want to reset the calculator to perform another conversion, you can click the Reset button, and all input fields will be cleared.

4. Calculate: Click the Calculate button to obtain the results. The calculated results will be displayed in the Results: section.

5. Swap: If you want to Swap the calculated to Exchange conversion, you can click the Swap button, and Calculate will be Exchange.

6. Result: The calculated "Result" will be displayed in the respective Result In output Watts output field.

volt amps [VA]	power factor [PF]	watts [W]	kilo watts [KW]
800 VA	0.8 PF	640 W	0.640 KW
900 VA	0.8 PF	720 W	0.720 KW
1000 VA	0.8 PF	800 W	0.800 KW
1200 VA	0.8 PF	960 W	0.960 KW
1300 VA	0.8 PF	1040 W	1.040 KW
1400 VA	0.8 PF	1120 W	1.120 KW
1500 VA	0.8 PF	1200 W	1.200 KW
1600 VA	0.8 PF	1280 W	1.280 KW
1700 VA	0.8 PF	1360 W	1.360 KW
1800 VA	0.8 PF	1440 W	1.440 KW
1900 VA	0.8 PF	1520 W	1.520 KW

Typical power factor values

Do not use typical power factor values for accurate calculations.

Equipment and appliances				cos θ	tan θ
Motor	Common induction motor	loaded at	0 %	0.17	5.80
			25%	0.55	1.52
			50 %	0.73	0.94
			75 %	0.80	0.75
			100 %	0.85	0.62
Lamps	Incandescent lamps			1.0	0
	Fluorescent lamps (uncompensated)			0.5	1.73
	Fluorescent lamps (compensated)			0.93	0.39
	Discharge lamps			0.4 to 0.6	2.29 to 1.33
Ovens	Ovens using resistance elements			1.0	0
	Induction heating ovens (compensated)			0.85	0.62
	Dielectric type heating ovens			0.85	0.62
Welding	Resistance-type soldering machines			0.8 to 0.9	0.75 to 0.48
	Fixed 1-phase arc-welding set			0.5	1.73
	Arc-welding motor-generating set			0.7 to 0.9	1.02 to 0.48
	Arc-welding transformer-rectifier set			0.7 to 0.8	1.02 to 0.75
Arc furnace				0.8	0.75
Power Factor Value Conversion Table

Frequently Asked Questions - FAQs for VA to Watts Calculator

What is 1500 VA?

That 1500VA (or 1500Watt) means that the UPS can deliver 1500W maximum. It has no relation to the battery capacity nor how much current is used to charge the battery.

What is the formula for watts to VA?

Use the following formula to calculate VA from watts: Apparent Power(VA) = Real Power in Watts ÷ Power factor in PF.

How do you convert VA to watts?

A volt-amps x power factor = watts. When you want to know how much the electricity is costing you, you use watts. When you are specifying equipment loads, fuses, and wiring sizes you use the VA, or the voltage times the amperage.

What is 1 watts into volt-amps (VA)?

A watt changes depending on whether the electrical circuit is AC or DC. In a DC circuit, 111 VA is the equivalent of 100 W. This equivalence means that the power factor of that power supply is 0.90.

How many watts is 850 VA?

Here rating of the inverter is 850 VA, so it can handle 850 VA maximum. Considering the power factor of 0.80, the total wattage will be 850 × 0.9 = 765 Watts.

About the Author

Md Jony Islam

Jony is a passionate writer and web developer. He enjoys sharing insights about technology, web development, and design. When he's not writing, he loves hiking and exploring the outdoors.

Volt-amps (VA) to Watts (W) Conversion Calculator | VA to Watts Convert | VA to Watts formula