Enter the reactance and the current of a system into the calculator to determine the kilovolt-ampere reactive (KVAR).

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## KVAR Formula

The following formula is used to calculate kilovolt-ampere reactive.

KVAR = Q = X* I ^2

- Where KVAR is the reactive power
- X is the reactance of the system (ohms)
- I is the current of the system/circuit (amps)

To calculate the reactive power (KVAR), multiply the reactance by the current squared.

## KVAR Definition

**What is KVAR? **

KVAR, short for kilovolt-ampere reactive, is a measure of the electrical reactive power of a system. This term is most often used when describing and talking about energy savings systems for devices that run on AC current.

## Example Problem

How to calculate KVAR?

**First, determine the reactance of the savings system.**For this problem, the reactance is calculated to be 40 ohms.

**Next, determine the current of the system.**For this example, the current of the circuit is measured to be 150 amps.

**Finally, calculate the KVAR.**Using the formula above, the KVAR is calculated to be:

KVAR = Q = X* I ^2

KVAR = Q = 40 * 150^2

KVAR = 900,000 KVAR