Choose a Measurement
Select a measurement and convert between different units
Single conversion
To convert from Millivolt-Ampere Reactive (mVAR) to Kilovolt-Ampere Reactive (kVAR), use the following formula:
Let's convert 5 Millivolt-Ampere Reactive (mVAR) to Kilovolt-Ampere Reactive (kVAR).
Using the formula:
Therefore, 5 Millivolt-Ampere Reactive (mVAR) is equal to Kilovolt-Ampere Reactive (kVAR).
Here are some quick reference conversions from Millivolt-Ampere Reactive (mVAR) to Kilovolt-Ampere Reactive (kVAR):
| Millivolt-Amperes Reactive | Kilovolt-Amperes Reactive |
|---|---|
| 0.000001 mVAR | kVAR |
| 0.001 mVAR | kVAR |
| 0.1 mVAR | kVAR |
| 1 mVAR | kVAR |
| 2 mVAR | kVAR |
| 3 mVAR | kVAR |
| 4 mVAR | kVAR |
| 5 mVAR | kVAR |
| 6 mVAR | kVAR |
| 7 mVAR | kVAR |
| 8 mVAR | kVAR |
| 9 mVAR | kVAR |
| 10 mVAR | kVAR |
| 20 mVAR | kVAR |
| 30 mVAR | kVAR |
| 40 mVAR | kVAR |
| 50 mVAR | kVAR |
| 100 mVAR | kVAR |
| 1000 mVAR | kVAR |
| 10000 mVAR | kVAR |
For all Reactive Power converters, choose units using the From/To dropdowns above.
A Millivolt-Ampere Reactive (mVAR) is a small unit used to measure reactive power.
Think of reactive power as the "helper" power in an electrical circuit. It doesn't do the actual work (like lighting a bulb), but it's essential for components like motors and transformers to function.
An mVAR is tiny: it's equal to one-thousandth of a single Volt-Ampere Reactive (VAR).
In an AC circuit, you have two types of power. Real power (measured in milliwatts, mW) does the actual work, like spinning a motor. Reactive power (measured in mVAR) is the "non-working" power that builds magnetic and electric fields to help the motor spin.
The problem is that too much reactive power leads to a poor power factor. This is a sign of inefficiency—it means your system is drawing more total power than it's actually using for work.
Managing reactive power, even at the small mVAR scale, is key to improving energy efficiency and keeping voltage levels stable in sensitive electronics.
The power triangle is a simple diagram that shows how these three types of power relate. Imagine a right-angle triangle:
This relationship is shown by the formula (mVA)2 = (mW)2 + (mVAR)2.
For engineers, the goal is to make the reactive power (mVAR) side as small as possible. This makes the total power (mVA) and the real power (mW) almost equal, which means the circuit is very efficient.
You won't hear about mVAR when discussing a city's power grid (they use much larger units like kVAR or MVAR).
Instead, the Millivolt-Ampere Reactive is crucial for low-power electronics.
Engineers use mVAR measurements in labs when designing or testing individual components like:
Precise mVAR readings help them understand the "reactive properties" of these tiny parts, ensuring that a final product (like your smartphone or computer) runs as efficiently as possible.
A Kilovolt-Ampere Reactive (kVAR) is a unit used to measure reactive power in an electrical system.
One kVAR is equal to one thousand volt-amperes reactive (VAR). Think of it as the counterpart to a kilowatt (kW), which measures real power (also known as "working power").
kVAR measures reactive power, often called "non-working" power or "wattless" power.
While it doesn't perform actual work (like lighting a bulb), it's essential for equipment that uses magnetic fields to operate. This includes common industrial and commercial items like:
This power is "reactive" because it just moves back and forth (oscillates) between the power source and the load. This extra movement increases the total current in the wires, which can put a strain on the entire electrical system.
A high amount of kVAR is the primary cause of a poor power factor.
Power factor is a critical measure of your electrical efficiency, on a scale from 0 to 1. A low power factor score means your system is using energy inefficiently.
To fix this, buildings install power factor correction (PFC) systems, which are usually capacitor banks. These banks supply the needed reactive power directly to the equipment.
This process "cancels out" the reactive power that would otherwise be pulled from the utility grid, which provides several key benefits:
Excessive kVAR is bad for both your system's health and your wallet. Because it increases the total current flowing through your wiring, high kVAR leads to several significant problems:
To cover the costs of this strain on the grid, utility companies often charge demand fees or power factor penalties, especially for commercial and industrial customers.