Watts (W) to kilovolt-amps (KVA) Conversion Calculator

Convert watts to kVA using this easy calculator, plus see the formulas used for the watts to kilovolt-amps conversion. Watts to KVA formula. Apparent power in kVA equals real power P in watts (W) divided by 1000 times power factor PF and accurate KVA is determined.

Watts To KVA Calculator

Learn how we tools this below

Add this tools to your site

Buy me a for Source Code

Conversion using the Watts to KVA Formula

Watts to KVA Calculation formula

The Apparent power S in Kilovolt-amps in KVA is calculated as the Real Power P in watts w, divided by 1000 times the Power factor in pf. Plug these values into the formula:

Apparent Power(S) = Real Power(P) Power factor(pf) × 1000

or, S(KVA) = P(W) pf × 1000

or, KVA = Watts pf × 1000

For Example, Let's convert 10000 watts to kVA given a power factor of 0.90.

How to use Watts to KVA Calculator?

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

1. Enter Real Power: Input the Real Power in watts or Load watts value in the specific input box. You can enter the value in millivolts mw, Watts W, kilowatts KW, & Megawatts MW 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 Watts to KVA 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 KVA output field.

Watts to KVA or VA Comparison and Sizing Table

Input		Output
Watts [W]	Power factor [PF]	kilovolts-amps [KVA]	volts-amps [VA]
100 W	0.9 PF	0.111 KVA	111.111 VA
200 W	0.9 PF	0.222 KVA	222.222 VA
300 W	0.9 PF	0.333 KVA	333.333 VA
400 W	0.9 PF	0.444 KVA	444.444 VA
500 W	0.9 PF	0.555 KVA	555.555 VA
600 W	0.9 PF	0.666 KVA	666.666 VA
700 W	0.9 PF	0.777 KVA	777.777 VA
800 W	0.9 PF	0.888 KVA	888.888 VA
900 W	0.9 PF	0.999 KVA	999.999 VA
1000 W	0.9 PF	1.111 KVA	1111.11 VA
1100 W	0.9 PF	1.222 KVA	1222.22 VA

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 Watts to KVA Calculator

What Is kVA?

kVA Is short for kilovolt-amperes. It’s a unit of measurement used to refer to electricity in the form of “apparent power” in an AC (alternating current ) or DC (direct current) electrical circuit. It’s measured as the product of the voltage, which represents electrical pressure, and the electrical current (amperes).

Is 1 kVA 1000 watts?

KVA stands for kilovolt-amperes. kilo is the scientific prefix for 1000 & in a purely resistive system a volt-ampere is a watt, therefore in a purely resistive system 1000 watts = 1000 volt-amperes = 1 KVA.

How convert kVA to kW?

Solution: The formula for the conversion of KVA to KW is as follows: KVA × pf = KW, where pf is the power factor.

How much kWh is 1 unit?

What is a unit of electricity? 1 unit of electricity is equal to one kilowatt-hour. It is the amount of power required to use an appliance of 1000 watts or, 1kW power rating for an hour.

How much is 1 watt in volts?

If you have a 1A circuit, 1 volt is equal to 1W. However, amps make the difference, too. So at 10A, 1 volt is equal to 10W. And if you have a 100A circuit, 1 volt is equal to 100W.

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.

Watts (W) to kilovolt-amps (KVA) Conversion Calculator | Watts to KVA Convert | Watts to KVA formula