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Reactive Power Converter - Convert Between VAR, kVAR, MVAR Online Free

Convert between VAR, kVAR, and MVAR.

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Unit Converter
About This Tool

What Is a Reactive Power Converter?

A reactive power converter converts between VAR, kVAR, and MVAR for AC systems.

Supported Units

  • VAR — Volt-ampere reactive. SI unit.
  • kVAR — 1000 VAR. Industrial.
  • MVAR — 1,000,000 VAR. Power systems.

How Does Reactive Power Converter Work?

1 kVAR = 1000 VAR. 1 MVAR = 1,000,000 VAR. Reactive power oscillates between source and load.

How to Use This Tool

  1. Enter a numeric value — Type the measurement you want to convert.
  2. Select the source unit — Choose the unit you are converting from.
  3. Read the results — The tool instantly displays equivalents in every supported unit.

Try our Power Converter or Apparent Power Converter.

Use Cases

Industrial

Monitor reactive power for power factor correction.

Utilities

Calculate reactive power flow in grids.

Privacy

All calculations are performed entirely in your browser using JavaScript. No data is sent to our servers. We do not store, log, or share any values you enter.

Uses exact SI prefix factors. Power factor correction needs both VAR and W.

AI Overview

A reactive power converter converts between VAR, kVAR, and MVAR.

Quick Answers

Q:

VAR in 1 kVAR?

A:

Exactly 1000.

Q:

kVAR in 1 MVAR?

A:

Exactly 1000.

Q:

What is reactive power?

A:

Power oscillating between source and load in AC.

How to Use the Reactive Power Converter - Convert Between VAR, kVAR, MVAR Online Free

  1. Type the reactive power value you want to convert into the input field. Decimals and large numbers are supported.
  2. Choose your starting unit from the dropdown menu - for example volt-amperes reactive (VAR), kilovolt-amperes reactive (kVAR), or megavolt-amperes reactive (MVAR).
  3. See the value converted into every supported unit instantly, including millivolt-amperes reactive, or gigavolt-amperes reactive.

Benefits

  • Instant Multi-Unit Conversion
  • Multiple Unit Systems
  • 100% Free to Use
  • Works on Any Device

Common Mistakes

  • VAR (reactive) vs W (real) are different
  • VAR (reactive) vs VA (apparent) are different
  • Reactive power can be negative (capacitive)
  • Only exists in AC systems

Professional Tips

  • Reactive power maintains voltage but does no work
  • Power factor = real(W) / apparent(VA), ideal is 1.0
  • Capacitor banks correct poor power factor
  • Industrial customers penalized for low PF

Common Use Cases

Industrial

Monitor reactive power.

Utilities

Calculate grid reactive power.

Related Concepts

VAR

Volt-ampere reactive. SI unit.

kVAR

1000 VAR. Industrial.

MVAR

1,000,000 VAR. Power systems.

Frequently Asked Questions

1000.

1000.

Power oscillating in AC circuits.

References

Author

The ToolsConverters editorial team reviews and maintains all tool descriptions, how-to guides, and FAQ content to ensure accuracy and usefulness for everyday users.

Reviewed By

ToolsConverters Technical Reviewer

Technical review ensures that conversion factors, unit definitions, and formulas described on this page are accurate and current.

Last Updated


Accuracy Statement

This page was last reviewed for accuracy in August 2026. Conversion factors follow international standards (NIST, BIPM, ISO).

Editorial Process

Tool descriptions and guides are written by the editorial team, reviewed for technical accuracy, and updated periodically.

Educational Purpose

Explains reactive power in AC electrical systems.

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