Conversion using the KW to VA Formula
KW to VA Calculation formula
The Apparent Power S in volt-amps VA is calculated as the 1000 times the Real Power P in Kilowatts kw, divided by the power factor in pf. Plug these values into the formula:
For Example, let's Convert the Real power of 12 kW with a power factor of 0.8 to the apparent power in volt amps.
Suggested Reading
- Joules (J) to Kilowatts (KW) Conversion Calculator
- Kilowatts (KW) to amps (A) Conversion Calculator
- Watt-hours (Wh) to Kilowatts (KW) Conversion Calculator
- Volts (V) to Amps (A) Conversion Calculator
- Electron-volts (eV) to Volts (v) Conversion Calculator
- Milliamp-hour (mAh) to Watt-hour Conversion Calculator
- Volt-amps (VA) to Amps (A) Conversion Calculator
- Amps (A) to kilowatts (KW) Conversion Calculator
- Watts (W) to Joules (J) Conversion Calculator
- Volt-amps (VA) to Kilovolt-amps (KVA) Conversion Calculator
- Amps (A) to Watts (W) Conversion Calculator
- Kilowatt-hours (KWh) to Watts (W) Conversion Calculator
How to use KW to VA Calculator?
To use the above "KW to VA Conversion Calculator" follow the below steps:
1. Enter Real Power: Input the Real Power in Kilowatts or Load Kilowatts 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.
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 VA output field.
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 KW to VA Calculator
A volt-ampere (VA) is the voltage times the current feeding an electrical load. A kilovolt-ampere (kVA) is 1000 volt-amperes. Electrical power is measured in watts (W).
KVA and VA are simply KVA = 1,000VA. The difference between KVA and KW. You need to know the power factor to calculate KW from KVA. Where pf is the power factor.
Both kilowatts and volt-amps measure electrical power. Kilowatts are a measure of real power, while volt-amps are a measure of apparent power.
In a DC circuit, 1 VA is the equivalent of 1 W. This equivalence means that the power factor of that power supply is 1.
The ratio between the VA (i.e. RMS volts time RMS amps) and Watts is called the power factor PF. In other words, volt-amps × power factor = watts. Similarly, KVA × PF = KW, Or kilovolt-amps times power factor equals kilowatts.
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