Volt-Ampere (VA) to Watt Converter
Power · unit-converter
Convert Volt-Ampere (VA) to Watt with a fixed input and output unit, step-by-step formula line, and reference tables. Linear units use SI watt definitions; mechanical hp uses 550 ft·lbf/s; BTU/h uses the IT BTU; dBm/dBW are logarithmic relative to 1 mW and 1 W. The full Power Converter also includes PS/CV, TR, kVA/MVA, and ft·lb/s.
Calculator
From: Volt-Ampere (VA) (va)
To: Watt (w)
About Volt-Ampere (VA)
Volt-amperes describe apparent power in AC circuits. At unity power factor, VA matches real power in watts; this tool uses that 1:1 mapping for conversion.
About Watt
The watt is the SI unit of power (one joule per second). All linear units in this converter are defined by a fixed watt equivalent.
How to convert volt-amperes (va, unity pf) to watts
1 volt-ampere (va) is equal to 1 watt when both are expressed in watt-equivalents:
1 va = (1 W ÷ 1 W) w = 1 w
At unity power factor, 1 VA corresponds to 1 W of real power.
Each volt-ampere (va) is defined as 1 W and each watt as 1 W in this tool, so one va equals 1 ÷ 1 w = 1 w.
Let d(va) be the numeric value in Volt-Ampere (VA) (va), and d(w) the value in Watt (w). Then:
d(w) = d(va) × (1 / 1)
Equivalently, divide by how many va fit into one w (watts per w divided by watts per va):
d(w) = d(va) ÷ 1
Or: watt = volt-ampere (va) ÷ 1
Examples
Example #1: Convert 1 va to watt
1 va = 1 va × (1/1) w = 1 w
1 va = 1 va ÷ 1 = 1 w
Intermediate watts: 1 W
Example #2: Convert 10 va to watt
10 va = 10 va × (1/1) w = 10 w
10 va = 10 va ÷ 1 = 10 w
Intermediate watts: 10 W
Summary
To convert Volt-Ampere (VA) to Watt, multiply the value in va by the ratio of watts per va divided by watts per w. Equivalently: value_w = value_va × (1 / 1). Numerically, 1 va equals 1 w.
Relationship context
You are converting between apparent power at unity PF (VA) (Volt-Amperes (VA, unity PF)) and SI / decimal power (watts and prefixes) (Watts). All linear values are mapped through watts first. The numeric factor is 1.000000e+0.
Conversion tables
| Volt-Ampere (VA) (va) | Watt (w) |
|---|---|
| 0.1 | 0.1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| Volt-Ampere (VA) (va) | Watt (w) |
|---|---|
| 10 | 10 |
| 20 | 20 |
| 30 | 30 |
| 40 | 40 |
| 50 | 50 |
| 60 | 60 |
| 70 | 70 |
| 80 | 80 |
| 90 | 90 |
| 100 | 100 |