The “amps to VA calculator” calculates apparent power (VA) using the current in amperes (A) passing through a circuit. It is useful in electrical engineering to size equipment such as transformers and UPS systems.
This amps to VA online calculator is used to calculate apparent power (VA), multiply the current (in A) by the voltage (in V) using the formula VA = A × V. This ensures optimal equipment selection and effective power distribution.
The formula for calculating single phase amps to VA is as follows:
The apparent power, which is measured in volt-amps, is equal to the current, which is measured in amps, multiplied by the voltage, which is measured in volts:
VA = I X V
The formula for calculating three-phase amps to VA is as follows:
The apparent power, which is measured in kilovolt-amps, is equal to the square root of three times the current, which is measured in amps, multiplied by the line-to-line voltage, which is measured in volts.
VA = √3 X I X V
To convert, please enter the amps and voltage in the boxes below. The calculator can work with three-phase circuits, although the single-phase setting is that which it always used by default.
Amp to VA Calculation Conversion Table
220V Single-Phase System
The table shows how current in amperes (A) related to equivalent power in volt-amps (VA) for different current values. Current values range from 1 mA to 100 A, with 1 mA or 1 A intervals. The table helps to calculate the apparent power needed to run electrical equipment at different current levels in 220V single-phase system.
| Current (A) | Volts-Amps (VA) |
| 0.001 mA (milli Amp) | 0.23 VA |
| 0.01 mA (milli Amp) | 2.3 VA |
| 0.1 mA (milli Amp) | 23 VA |
| 1 A (Amp) | 230 VA |
| 2 A (Amps) | 460 VA |
| 3 A (Amps) | 690 VA |
| 4 A (Amps) | 920 VA |
| 5 A (Amps) | 1150 VA |
| 6 A (Amps) | 1380 VA |
| 7 A (Amps) | 1610 VA |
| 8 A (Amps) | 1840 VA |
| 9 A (Amps) | 2070 VA |
| 10 A (Amps) | 2300 VA |
| 20 A (Amps) | 4600 VA |
| 30 A (Amps) | 6900 VA |
| 40 A (Amps) | 9200 VA |
| 50 A (Amps) | 11500 VA |
| 60 A (Amps) | 13800 VA |
| 70 A (Amps) | 16100 VA |
| 80 A (Amps) | 18400 VA |
| 90 A (Amps) | 20700 VA |
| 100 A (Amps) | 23000 VA |
400V Three-Phase Electrical System
In a 400V three-phase electrical system, the apparent power S in volt-amps (VA) is the square root of 3 times the line-to-line voltage (V) times the current (I) in amperes (A).
| Current (A) | Volts-Amps (VA) |
| 0.001 mA (milli Amp) | 0.692 VA |
| 0.01 mA (milli Amp) | 6.92 VA |
| 0.1 mA (milli Amp) | 69.2 VA |
| 1 A (Amp) | 692 VA |
| 2 A (Amps) | 1384 VA |
| 3 A (Amps) | 2076 VA |
| 4 A (Amps) | 2768 VA |
| 5 A (Amps) | 3460 VA |
| 6 A (Amps) | 4152 VA |
| 7 A (Amps) | 4844 VA |
| 8 A (Amps) | 5536 VA |
| 9 A (Amps) | 6228 VA |
| 10 A (Amps) | 6920 VA |
| 20 A (Amps) | 13840 VA |
| 30 A (Amps) | 20760 VA |
| 40 A (Amps) | 27680 VA |
| 50 A (Amps) | 34600 VA |
| 60 A (Amps) | 41520 VA |
| 70 A (Amps) | 48440 VA |
| 80 A (Amps) | 55360 VA |
| 90 A (Amps) | 62280 VA |
| 100 A (Amps) | 69200 VA |
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 to perceived power in volt-amperes (VA). It involves in evaluating the power consumption (or) rating of electrical devices, providing proper sizing & effective use of electrical systems.){kind=link}