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Preview of MetricRules!

MetricRules! by SpitFire-666

Converts many imperial units (aka Freedom Units) to metric 📏

Available on Firefox for Android™Available on Firefox for Android™
4.1 (7 reviews)4.1 (7 reviews)
72 Users72 Users
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🆕 Now supports conversion of area measurement!
About this extension
🆕 Now supports HP (horsepower), Fahrenheit, square inches/feet/miles and even nautical miles!

The addon supports 43 different units are which are converted to metric inline, marked with a ruler emoji 📏

Miles, feet, yards, pounds, gallons, fl oz, pint, mpg, mph are deciphered for the rest of the world. The addon works on Firefox Android 📱 too!

A fork of https://github.com/esprimo/imperial-to-metric-chrome-extension.
Rated 4.1 by 7 reviewers
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Version
0.7
Size
46.74 KB
Last updated
2 days ago (Jun 27, 2026)
Related Categories
  • Language Support
License
Mozilla Public License 2.0
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