VA to Amps Calculator

Enter the number of phases, the apparent power in volt-amps, and the voltage in volts, and press the calculate button to obtain the current in amps:

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Formula to Convert Single-Phase VA to Amps

The actual intensity of the electric current, measured in amperes, can be calculated by dividing the apparent power, measured in volt-amps, by the voltage, measured in volts. Mathematically this can be expressed as I_(A) = S_(VA) / V_(V).

3 Phase kVA to Amps Calculation Formula

I_(A) = S_(VA) / (√3 × V_L-L(V))

The equation relates the current in amperes (I) to the apparent power in volt-amperes (V) and the line-to-line voltage in volts (VL-L). To calculate the current, multiply the apparent power by 1000 and divide the result by the square root of three times the line-to-line voltage. The resulting unit of current is amps (A).

Suppose we have a three-phase electrical system with a line-to-line voltage of 480 volts and an apparent power of 50,000 VA. Using the formula:

I(A) = S(VA) / (√3 × VL-L(V) )

We can calculate the current as follows:

I(A) = 50,000 VA / (√3 × 480 V) = 60.6 A

Therefore, the current in the system is approximately 60.6 amps.

VA to Amps Conversion Table

Here’s an example of a VA to Amps conversion table for a line to line 230 volt (single phase) circuit, from 1VA to 6000 VA:

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