kW to kVA Calculator
Convert real power in kilowatts (kW) to apparent power in kilovolt-amperes (kVA).
Kilowatt to Kilovolt-Ampere Converter
Common kW to kVA Conversions
Click on these links to see instant conversions with common values:
Understanding kW to kVA Conversion
Converting kilowatts (kW) to kilovolt-amperes (kVA) involves understanding the relationship between real power and apparent power, which is defined by the power factor.
Conversion Formula
Where:
• kW = Real Power in Kilowatts
• kVA = Apparent Power in Kilovolt-Amperes
• PF = Power Factor (a dimensionless number between 0 and 1)
Key Concepts
- Kilowatt (kW): The unit of real power, which is the actual power consumed or utilized by an electrical load.
- Kilovolt-Ampere (kVA): The unit of apparent power, which is the total power flowing in an AC circuit, including both real power and reactive power.
- Power Factor (PF): The ratio of real power to apparent power. It indicates how effectively electrical power is being converted into useful work output. A power factor of 1 (or 100%) means all the apparent power is real power.
Typical Power Factor Values
| Load Type | Typical Power Factor (PF) |
|---|---|
| Resistive Loads (Heaters, Incandescent Lights) | 0.95 - 1.00 |
| Inductive Loads (Motors, Transformers) | 0.60 - 0.90 (lagging) |
| Capacitive Loads (Capacitor Banks) | 0.95 - 1.00 (leading) |
| Computers, LED Lighting (with SMPS) | 0.85 - 0.95 |
| Industrial Facilities | 0.70 - 0.95 |
Frequently Asked Questions
What is the difference between kW and kVA?
kW (kilowatts) represents the real power that does actual work, while kVA (kilovolt-amperes) represents the apparent power, which is the total power supplied to a circuit. The difference is due to reactive power, which doesn't do work but is necessary for some electrical components like motors.
Why is power factor important in kW to kVA conversion?
The power factor accounts for the phase difference between voltage and current in AC circuits. A lower power factor means more apparent power (kVA) is needed to deliver the same amount of real power (kW), leading to inefficiencies and potentially higher electricity bills.