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UnitFlip: Inline Unit Converter

Double‑click measurements to instantly convert between metric and imperial units (no APIs)

Author
NormalRandomPeople
Daily installs
0
Total installs
0
Ratings
0 0 0
Version
1.0
Created
2025-07-11
Updated
2025-07-11
Size
6.44 KB
Compatibility
Compatible with Firefox Compatible with Chrome Compatible with Opera Compatible with Edge
License
MIT
Applies to
All sites

Introducing UnitFlip

UnitFlip is a lightweight userscript that lets you convert measurements between metric and imperial systems instantly without leaving the page or relying on an external service.

Simply double‑click any supported measurement, and a tooltip will appear showing the converted value. It automatically adapts to dark or light browser themes and works across all websites.

How to Install and Use

  1. Install the script.
  2. Navigate to any webpage containing measurements.
  3. Double‑click on a measurement.
  4. Read the tooltip for the converted value; click elsewhere or press Escape to dismiss.

Examples to Try

Double‑click each of these examples on any webpage:

10 km        → 6.21 mi  
5 ft         → 1.52 m  
72°F         → 22.22 °C  
100 mL       → 3.38 fl oz  
6'0"         → 182.88 cm  
2 ha         → 20000.00 m²