VA to Watts Converter
Enter any number of volt-amperes and the watts appear as you type. Press ⇄ to swap the direction, and see the step-by-step math under the result. Set the power factor of your load or equipment.
Step-by-step calculation
How to use the VA to Watts Converter
- Type a value in the Volt-amperes box. The watts result appears instantly.
- Going the other way? Type in the Watts box, or press the ⇄ swap button.
- Set the precision with the decimal places menu and adjust the options to match your situation.
- Check the working in the step-by-step box, then press Copy result or click any row in the tables below.
Volt-amperes to watts formula
- Take the apparent power in VA.
- Multiply by the power factor of the load or the device's rated PF.
Example: 1,000 VA × 0.9 = 900 W.
Reverse formula: VA = W ÷ PF. Example: 600 W ÷ 0.6 = 1,000 VA.
UPS labels usually give both numbers, for example 1500 VA / 900 W, which means a power factor of 0.6.
VA to W conversion table (1–100)
Click any row to load it into the converter.
Volt-amperes to watts at PF 0.9
| Volt-amperes | Watts |
|---|---|
| 1 VA | 0.9 W |
| 2 VA | 1.8 W |
| 3 VA | 2.7 W |
| 4 VA | 3.6 W |
| 5 VA | 4.5 W |
| 6 VA | 5.4 W |
| 7 VA | 6.3 W |
| 8 VA | 7.2 W |
| 9 VA | 8.1 W |
| 10 VA | 9 W |
| 11 VA | 9.9 W |
| 12 VA | 10.8 W |
| 13 VA | 11.7 W |
| 14 VA | 12.6 W |
| 15 VA | 13.5 W |
| 16 VA | 14.4 W |
| 17 VA | 15.3 W |
| 18 VA | 16.2 W |
| 19 VA | 17.1 W |
| 20 VA | 18 W |
| 21 VA | 18.9 W |
| 22 VA | 19.8 W |
| 23 VA | 20.7 W |
| 24 VA | 21.6 W |
| 25 VA | 22.5 W |
| 26 VA | 23.4 W |
| 27 VA | 24.3 W |
| 28 VA | 25.2 W |
| 29 VA | 26.1 W |
| 30 VA | 27 W |
| 31 VA | 27.9 W |
| 32 VA | 28.8 W |
| 33 VA | 29.7 W |
| 34 VA | 30.6 W |
| 35 VA | 31.5 W |
| 36 VA | 32.4 W |
| 37 VA | 33.3 W |
| 38 VA | 34.2 W |
| 39 VA | 35.1 W |
| 40 VA | 36 W |
| 41 VA | 36.9 W |
| 42 VA | 37.8 W |
| 43 VA | 38.7 W |
| 44 VA | 39.6 W |
| 45 VA | 40.5 W |
| 46 VA | 41.4 W |
| 47 VA | 42.3 W |
| 48 VA | 43.2 W |
| 49 VA | 44.1 W |
| 50 VA | 45 W |
| 51 VA | 45.9 W |
| 52 VA | 46.8 W |
| 53 VA | 47.7 W |
| 54 VA | 48.6 W |
| 55 VA | 49.5 W |
| 56 VA | 50.4 W |
| 57 VA | 51.3 W |
| 58 VA | 52.2 W |
| 59 VA | 53.1 W |
| 60 VA | 54 W |
| 61 VA | 54.9 W |
| 62 VA | 55.8 W |
| 63 VA | 56.7 W |
| 64 VA | 57.6 W |
| 65 VA | 58.5 W |
| 66 VA | 59.4 W |
| 67 VA | 60.3 W |
| 68 VA | 61.2 W |
| 69 VA | 62.1 W |
| 70 VA | 63 W |
| 71 VA | 63.9 W |
| 72 VA | 64.8 W |
| 73 VA | 65.7 W |
| 74 VA | 66.6 W |
| 75 VA | 67.5 W |
| 76 VA | 68.4 W |
| 77 VA | 69.3 W |
| 78 VA | 70.2 W |
| 79 VA | 71.1 W |
| 80 VA | 72 W |
| 81 VA | 72.9 W |
| 82 VA | 73.8 W |
| 83 VA | 74.7 W |
| 84 VA | 75.6 W |
| 85 VA | 76.5 W |
| 86 VA | 77.4 W |
| 87 VA | 78.3 W |
| 88 VA | 79.2 W |
| 89 VA | 80.1 W |
| 90 VA | 81 W |
| 91 VA | 81.9 W |
| 92 VA | 82.8 W |
| 93 VA | 83.7 W |
| 94 VA | 84.6 W |
| 95 VA | 85.5 W |
| 96 VA | 86.4 W |
| 97 VA | 87.3 W |
| 98 VA | 88.2 W |
| 99 VA | 89.1 W |
| 100 VA | 90 W |
Watts to volt-amperes at PF 0.9
| Watts | Volt-amperes |
|---|---|
| 1 W | 1.111 VA |
| 2 W | 2.222 VA |
| 3 W | 3.333 VA |
| 4 W | 4.444 VA |
| 5 W | 5.556 VA |
| 6 W | 6.667 VA |
| 7 W | 7.778 VA |
| 8 W | 8.889 VA |
| 9 W | 10 VA |
| 10 W | 11.111 VA |
| 11 W | 12.222 VA |
| 12 W | 13.333 VA |
| 13 W | 14.444 VA |
| 14 W | 15.556 VA |
| 15 W | 16.667 VA |
| 16 W | 17.778 VA |
| 17 W | 18.889 VA |
| 18 W | 20 VA |
| 19 W | 21.111 VA |
| 20 W | 22.222 VA |
| 21 W | 23.333 VA |
| 22 W | 24.444 VA |
| 23 W | 25.556 VA |
| 24 W | 26.667 VA |
| 25 W | 27.778 VA |
| 26 W | 28.889 VA |
| 27 W | 30 VA |
| 28 W | 31.111 VA |
| 29 W | 32.222 VA |
| 30 W | 33.333 VA |
| 31 W | 34.444 VA |
| 32 W | 35.556 VA |
| 33 W | 36.667 VA |
| 34 W | 37.778 VA |
| 35 W | 38.889 VA |
| 36 W | 40 VA |
| 37 W | 41.111 VA |
| 38 W | 42.222 VA |
| 39 W | 43.333 VA |
| 40 W | 44.444 VA |
| 41 W | 45.556 VA |
| 42 W | 46.667 VA |
| 43 W | 47.778 VA |
| 44 W | 48.889 VA |
| 45 W | 50 VA |
| 46 W | 51.111 VA |
| 47 W | 52.222 VA |
| 48 W | 53.333 VA |
| 49 W | 54.444 VA |
| 50 W | 55.556 VA |
| 51 W | 56.667 VA |
| 52 W | 57.778 VA |
| 53 W | 58.889 VA |
| 54 W | 60 VA |
| 55 W | 61.111 VA |
| 56 W | 62.222 VA |
| 57 W | 63.333 VA |
| 58 W | 64.444 VA |
| 59 W | 65.556 VA |
| 60 W | 66.667 VA |
| 61 W | 67.778 VA |
| 62 W | 68.889 VA |
| 63 W | 70 VA |
| 64 W | 71.111 VA |
| 65 W | 72.222 VA |
| 66 W | 73.333 VA |
| 67 W | 74.444 VA |
| 68 W | 75.556 VA |
| 69 W | 76.667 VA |
| 70 W | 77.778 VA |
| 71 W | 78.889 VA |
| 72 W | 80 VA |
| 73 W | 81.111 VA |
| 74 W | 82.222 VA |
| 75 W | 83.333 VA |
| 76 W | 84.444 VA |
| 77 W | 85.556 VA |
| 78 W | 86.667 VA |
| 79 W | 87.778 VA |
| 80 W | 88.889 VA |
| 81 W | 90 VA |
| 82 W | 91.111 VA |
| 83 W | 92.222 VA |
| 84 W | 93.333 VA |
| 85 W | 94.444 VA |
| 86 W | 95.556 VA |
| 87 W | 96.667 VA |
| 88 W | 97.778 VA |
| 89 W | 98.889 VA |
| 90 W | 100 VA |
| 91 W | 101.111 VA |
| 92 W | 102.222 VA |
| 93 W | 103.333 VA |
| 94 W | 104.444 VA |
| 95 W | 105.556 VA |
| 96 W | 106.667 VA |
| 97 W | 107.778 VA |
| 98 W | 108.889 VA |
| 99 W | 110 VA |
| 100 W | 111.111 VA |
Common values
| Volt-amperes | Watts | Example |
|---|---|---|
| 500 VA | 450 W | 500 VA UPS |
| 600 VA | 540 W | 600 VA |
| 800 VA | 720 W | 800 VA |
| 1,000 VA | 900 W | 1,000 VA UPS |
| 1,500 VA | 1,350 W | 1,500 VA UPS |
| 2,000 VA | 1,800 W | 2,000 VA |
| 3,000 VA | 2,700 W | 3,000 VA |
| 5,000 VA | 4,500 W | 5,000 VA |
About volt-amperes and watts
Volt-amperes (VA). Volt-amperes (VA) measure apparent power: voltage × current. UPS units and transformers are rated in VA as well as watts.
Watts (W). The watt is the SI unit of power. In an electric circuit, power equals voltage times current (times the power factor for AC).
Frequently asked questions
How do you convert VA to watts?
Multiply VA by the power factor: W = VA × PF. A 1,000 VA UPS with PF 0.6 supplies 600 W.
Are VA and watts the same?
Only for purely resistive loads (PF = 1). Computers and motors draw more VA than watts.
How many watts is a 1500 VA UPS?
It depends on its rated power factor; typical consumer models are 0.6 to 0.9, so 900 to 1,350 W. Check the label.
What is 1,500 volt-amperes in watts?
1,500 VA is 1,350 W.
Is this converter free and private?
Yes. It is free with no sign-up, and every calculation runs in your browser, so nothing you type is sent to a server.