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VA to amps calculator FullScreen

Convert apparent power in volt-amperes (VA) to electrical current in amperes (A). Perfect for understanding the current requirements of electrical systems and equipment. Obtain an estimation of amperes from volt-amperes using this convenient online tool.

Enter phase #:  
Enter volt-amps: VA
Enter line to line volts: V
Result in amps: A


What is VA to amps calculator

To convert volt-amps (VA) to amps (A), you need to know the voltage (V) of the electrical circuit. The formula for converting VA to amps is:

Amps (A) = VA / V

Simply divide the apparent power in volt-amps by the voltage to get the amperage.

For example, if you have an electrical load with an apparent power of 500 VA and the voltage is 120 volts, you can calculate the amperage as follows:

Amps (A) = 500 VA / 120 V Amps (A) ≈ 4.17 A

In this example, the load has an approximate amperage of 4.17 amps.

Please note that volt-amps (VA) represent apparent power, which is the combination of real power and reactive power. The actual current drawn by a load might be different depending on the power factor (PF) of the load. If the power factor is known, you can multiply the apparent power (VA) by the power factor to get the real power (W) and then use Ohm's Law (P = IV) to find the current (A).

3 phase kVA to amps calculation formula

The current I in amps is equal to 1000 times the apparent power S in volt-amps, divided by the square root of 3 times the line to line voltage VL-L in volts:

I(A) = S(VA) / (3 × VL-L(V) ) = S(VA) / (3 × VL-N(V) )

VA to amps calculator Example

To convert volt-amps (VA) to amperes (A), you need to know the voltage (V) of the circuit. The formula to calculate amps from VA and voltage is:

A = VA / V

Here's an example that demonstrates using the VA to amps formula:

Let's assume you have a circuit with an apparent power of 1000 VA and a voltage of 120 volts. We want to calculate the amperage.

Using the VA to amps formula: A = VA / V A = 1000 VA / 120 V A ≈ 8.33 A

Therefore, the amperage of the circuit is approximately 8.33 amps.

This calculation helps determine the amperage when only the apparent power (volt-amps) and the voltage are known. Keep in mind that this conversion assumes a purely resistive load without taking into account the power factor or any reactive power components.