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Reactive Energy Converter
Enter a reactive energy value in VARh, kVARh, or MVARh and see it converted to every other unit instantly. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Converted
Example shown — replace it with your own value and unit.
How it works
- Enter a reactive energy value and its unit.
- The value converts to every other reactive energy unit at once.
- Read off the result you need.
VARh, kVARh, and MVARh are related by powers of a thousand — this converter multiplies or divides by 1,000 to move between them, the same relationship as watt-hours, kilowatt-hours, and megawatt-hours.
FAQ
Is my data uploaded anywhere?
No. Conversion happens entirely in your browser — nothing is sent to a server.
What units are supported?
VARh, kVARh, and MVARh (volt-amp-reactive hours, and their kilo/mega multiples) all convert to each other.
What is reactive energy used for?
Utilities track it to bill for or penalize poor power factor — it's reactive power accumulated over time, similar to how kWh is real power over time.
How is this different from the Reactive Power Converter?
Reactive power is an instantaneous rate (VAR); reactive energy is that rate accumulated over an hour (VARh) — the same relationship as watts to watt-hours.
How we compare
| Feature | Online Tool Store | Calculator app | Utility billing statement |
|---|---|---|---|
| Shows every unit at once | ✓ | One conversion at a time | Only shows the unit your utility uses |
| Free, no setup | ✓ | ✓ | N/A |
A utility bill only shows one unit. Reactive Energy Converter lets you compare figures across VARh, kVARh, and MVARh in one place.