Watts to VA Conversion calculator:
Enter Real power in watts and apparent power in VA at the above-mentioned calculator to get the VA. Here the relationship between the real power P and apparent power S is that the real power divided by the power factor is equal to apparent power.
Apparent power (VA) = real power (W) / power factor
S(VA) = P(W) / PF
In simple words,
Volt-Amp is equal to Watt divided by the power factor.
Hence, for converting W to VA,
VA = W / pf
Example:
Calculate the VA rating of the 15000 Watts, 0.96pf single phase transformer.
Apply, our formula
VA = 15000 / 0.96
Apparent Power S(VA) = 15625 Volt – Amp
W to VA Conversion Table:
Below mentioned W to VA chart is prepared for the standard motor rating. Hence 750 Watts motor VA rating will be 798 VA at 0.95 pf.
| S. No | Watts | pf | VA |
| 1 | 750 | 0.95 | 789 |
| 2 | 1100 | 0.95 | 1158 |
| 3 | 1500 | 0.95 | 1579 |
| 4 | 2200 | 0.95 | 2316 |
| 5 | 3700 | 0.95 | 3895 |
| 6 | 5500 | 0.95 | 5789 |
| 7 | 7500 | 0.95 | 7895 |
| 8 | 11000 | 0.95 | 11579 |
| 9 | 15000 | 0.95 | 15789 |
| 10 | 22000 | 0.95 | 23158 |
| 11 | 37000 | 0.95 | 38947 |
| 12 | 50000 | 0.95 | 52632 |
| 13 | 75000 | 0.95 | 78947 |
| 14 | 90000 | 0.95 | 94737 |
| 15 | 110000 | 0.95 | 115789 |
| 16 | 132000 | 0.95 | 138947 |
| 17 | 150000 | 0.95 | 157895 |
| 18 | 175000 | 0.95 | 184211 |
| 19 | 220000 | 0.95 | 231579 |
| 20 | 250000 | 0.95 | 263158 |
| 21 | 280000 | 0.95 | 294737 |
| 22 | 310000 | 0.95 | 326316 |
| 23 | 350000 | 0.95 | 368421 |
| 24 | 375000 | 0.95 | 394737 |
| 25 | 420000 | 0.95 | 442105 |
