Unit Converter
Extension Actions
Converts between common units for length, weight, temperature, speed, data storage, and time in a popup panel.
Unit Converter is a fast, lightweight Chrome extension for converting between common units. Metric-first defaults make it ideal for international users, scientists, and developers.
**6 Categories, 40+ Units:**
- Length: mm, cm, m, km, inch, foot, yard, mile
- Weight: mg, g, kg, metric ton, oz, lb
- Temperature: Celsius, Fahrenheit, Kelvin
- Speed: m/s, km/h, mph, knots
- Data Storage: bytes, KB, MB, GB, TB, PB
- Time: seconds, minutes, hours, days, weeks, months, years
**Key Features:**
- Live conversion as you type
- All conversions displayed at once in a conversion table
- One-click swap between input and output units
- Copy any result with a single click
- Recent conversions history (last 5)
- Clean dark theme UI
- No permissions required — runs entirely in the popup
- No ads, no tracking, no data collection
**Why Unit Converter?**
- Metric-first: defaults to km, kg, Celsius (not imperial)
- Instant: no loading, no server calls, 100% offline
- Lightweight: under 20 KB total
- Privacy: zero permissions, zero network requests