Conversion using the KW to KVA Formula
How to Calculate KVA from Real Power KW and Power factor pf using AC Phase current.
The Apparent Power S in kilovolt-amps KVA is calculated as the Real Power P in Kilowatts kw, divided by the Power factor in pf. Plug these values into the formula:
For Example, let's find the apparent power in kVA for a 25 kW electric motor with a power factor of 0.8
Suggested Reading
- Kilowatts (Kw) to Volts (V) Conversion Calculator
- Watts (W) to kilowatt-hour (Kwh) Conversion Calculator
- Watts (W) to Joules (J) Conversion Calculator
- Kilowatt-hours (KWh) to Kilowatts (kW) Conversion Calculator
- Volts (V) to Amps (A) Conversion Calculator
- Amps (A) to kilovolt-amps (KVA) Conversion Calculator
- Kilowatts (KW) to kilowatt-hour (Kwh) Conversion Calculator
- Kilowatts (KW) to Watt-hours (WH) Conversion Calculator
- Watts (W) to kilovolt-amps (KVA) Conversion Calculator
- Joules (J) to Kilowatts (KW) Conversion Calculator
- Electron-volts (eV) to Volts (v) Conversion Calculator
- Watt-hour (Wh) to Milliamp-hour (mAh) Conversion Calculator
How to use KW to KVA Calculator?
To use the above "KW to KVA 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 KVA output field.
KW to KVA conversion application
- Input Fields: Users enter Real Power kw and Power factor pf.
- Real-Time Calculation: Converts KW to kVA instantly as the user enters the value.
- Power Factor Consideration: Includes optional input for power factor in single phase, 3-phase calculations.
- Clear Results Display: Displays the calculated KVA clearly after clicking "Calculate".
KW To KVA Conversion Chart
Input | Output | |||
---|---|---|---|---|
Power (kW) | kVA (PF = 0.6) | kVA (PF = 0.8) | kVA (PF = 0.9) | kVA (PF = 1.0) |
1 | 1.67 | 1.25 | 1.11 | 1.00 |
2 | 3.33 | 2.50 | 2.22 | 2.00 |
5 | 8.33 | 6.25 | 5.56 | 5.00 |
10 | 16.67 | 12.50 | 11.11 | 10.00 |
20 | 33.33 | 25.00 | 22.22 | 20.00 |
50 | 83.33 | 62.50 | 55.56 | 50.00 |
100 | 166.67 | 125.00 | 111.11 | 100.00 |
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 KVA Calculator
KW is the abbreviation of kilowatt. In other words, it represents 1000W. It is the measure of Real power that is often converted into the form of usable output.
kW is the unit of real power and kVA is a unit of apparent power (or real power plus re-active power).
The kilovolt-ampere (kVA) is the power rating of a circuit conveying 1,000V and an ampere or 1,000A and a volt. A single kilovolt-ampere is comparable to a kilowatt.
As far as I know for a 2-ton inverter AC a 3.5 to 4 KVA stabilizer of 2533 watts is perfect. Let me tell you about four of the best AC stabilizers that you can buy for your AC.
So a 3.5 kW appliance means an appliance that consumes 2.5kW of energy if it runs for 1 hour.