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

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Conversion using the Watts to KVA Formula

How to Calculate KVA from Real Power watts and Power factor pf using AC Phase current.

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:

KVA = Wattspf × 1000

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

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

or, S(KVA) = 10000 watts0.9 pf × 1000

or, Kilovolts-amps = 11.1111 KVA

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 conversion application

Input Fields: Users enter Real power watts and Power factor pf.
Real-Time Calculation: Converts Watts to kVA instantly as the user enters the value.
Power Factor Consideration: Includes optional input for power factor in 3-phase calculations.
Clear Results Display: Displays the calculated KVA clearly after clicking "Calculate".

Watts to KVA Conversion Chart

Input	Output
Watts (W)	KVA (PF = 1)	KVA (PF = 0.5)	KVA (PF = 0.8)	KVA (PF = 0.9)
1000	1.00	2.00	1.25	1.11
5000	5.00	10.00	6.25	5.56
10000	10.00	20.00	12.50	11.11
25000	25.00	50.00	31.25	27.78
50000	50.00	100.00	62.50	55.56

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