Use this free Watts to kVA Calculator to convert real power (watts) into apparent power (kVA) for AC circuits. Fast, accurate tool with formula, table, and examples.
Quick Intro: Convert Watts to KVA
To convertwatts to kVA, divide the power in watts by1000 × power factor. This conversion helps estimate the apparent power (kVA) from real power (watts) in AC circuits. Our calculator uses this formula to give accurate results for both single-phase and three-phase systems. Simply input your wattage and power factor, and get the corresponding kVA value instantly. Ideal for generators, UPS systems, and load planning.
What do you need to know to calculate AC KVA?
TheWatts to kVA Calculatoris a simple tool to convert real power (watts) into apparent power (kilovolt-amperes or kVA) in AC electrical systems. It’s especially useful for electrical engineers, electricians, and students working with load calculations or generator sizing.
To convert watts to kVA, you need to know the power factor (PF). The formula is:kVA = Watts ÷ (1000 × Power Factor). This calculator supports single-phase and three-phase systems. By entering the watt value and the power factor, it gives you the kVA result instantly—no manual calculation needed.
The calculator also shows a sample conversion table and the formula used. It's mobile-friendly, fast, and 100% free to use.
Watts to KVA Conversion Chart
| Watts | Power Factor | kVA (Result) |
|---|
| 1000 | 1.0 | 1.00 kVA |
| 2000 | 0.8 | 2.50 kVA |
| 3000 | 0.7 | 4.29 kVA |
| 5000 | 0.9 | 5.56 kVA |
| 10000 | 0.6 | 16.67 kVA |
What is the formula to convert watts to kVA?
The formula is: kVA = Watts ÷ (1000 × Power Factor).
Why is power factor important in this conversion?
Power factor adjusts for the phase difference between voltage and current in AC systems.
What is a good default power factor?
A typical default value is 0.8 for industrial and commercial loads.
Is this calculator suitable for single and three-phase systems?
Yes, it works for both, just ensure the correct power factor is used.
What does kVA stand for?
kVA stands for kilovolt-amperes, the unit of apparent power.
Can I convert kW to kVA?
Yes, if you know the power factor: kVA = kW ÷ Power Factor.
Is there a mobile version of this calculator?
Yes, it’s fully responsive and mobile-friendly.
Is power factor always less than 1?
Yes, it ranges between 0 and 1 in real-world AC circuits.
Why convert watts to kVA?
To size generators or UPS systems, which are often rated in kVA.
Is this tool free to use?
Absolutely, it’s 100% free with no signup required.
