UnitConvConvert
Power

Convert volt-amperes to watts

1 VA=1W

Use the converter below to change any volt-amperes value into watts instantly — with formula, conversion table, and real-world examples.

1

Conversion formula

Forward
watts = volt-amperes × 1
Reverse
volt-amperes = watts × 1

Example: 10 VA × 1 = 10 W.

About both units

From

Volt-Ampere

VA

The volt-ampere equals one watt for purely resistive loads, but differs from watts for inductive or capacitive AC loads. Used for transformer, UPS and generator sizing — which must handle apparent power, not just real power.

Real-world: Home UPS: 600–1500 VA. Transformer: kVA ratings. Motor power factor typically 0.8 — 1 kW motor = 1.25 kVA.
Read full volt-ampere reference →
To

Watt

W

The watt is the SI unit of power — 1 joule per second. Named after James Watt. Common examples: LED bulb 5–10 W, laptop 45–100 W, kettle 2000–3000 W, car engine 50,000+ W.

Real-world: LED bulb: 5–10 W. Laptop: 45 W. Kettle: 2200 W. Oven: 2000 W. Sun per m² on Earth: 1361 W/m².
Read full watt reference →

Volt-Ampere to Watt conversion table

Common volt-amperes to watts values for quick reference.

Volt-Ampere (VA)Watt (W)
1 VA1 W
5 VA5 W
10 VA10 W
50 VA50 W
100 VA100 W
500 VA500 W
1,000 VA1,000 W
5,000 VA5,000 W
10,000 VA10,000 W
50,000 VA50,000 W

Tips & common mistakes

Quick tips

  • VA = V × A (RMS).
  • For purely resistive loads, VA = W.
  • For motors, computers: VA > W (power factor < 1).

Avoid these

  • Treating VA and W as identical — only true for resistive loads.
  • Buying UPS by W when VA rating is required.
  • Ignoring power factor in transformer sizing.

Frequently asked questions

How many watts in a volt-ampere?
One volt-ampere equals 1 watts.
How do I convert volt-amperes to watts?
Multiply the volt-ampere value by 1 to get the equivalent in watts.
What is 100 volt-amperes in watts?
100 volt-amperes equals 100 watts.
Is a volt-ampere bigger than a watt?
No. 1 volt-ampere equals 1 watts, so one volt-ampere is smaller.
How to convert volt-amperes to watts without a calculator?
Multiply by 1 for a quick estimate; use a calculator for precise results.

Related power conversions

📊 See full comparison matrix →

More from Volt-Ampere

VA → kW
1 = 0.001 kW
VA → MW
1 = 1.0000e-6 MW
VA → hp
1 = 0.001341 hp
VA → PS
1 = 0.00136 PS
VA → BTU/h
1 = 3.41214 BTU/h
VA → ft·lbf/s
1 = 0.7376 ft·lbf/s

More to Watt

kW → W
1 = 1,000 W
MW → W
1 = 1,000,000 W
hp → W
1 = 745.7 W
PS → W
1 = 735.499 W
BTU/h → W
1 = 0.2931 W
ft·lbf/s → W
1 = 1.35582 W

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