Niche & Everyday CalculatorsFree100% Client-Side
Unit Converter
Convert between units of length, weight, temperature, volume, area, speed, and time instantly as you type.
100% privateRuns instantly in-browserUpdated regularly
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100% Secure & Private
Your files never leave your computer — processed in-browser with WebAssembly.
Lightning Fast
No queues, no uploads — results in milliseconds, even on mobile.
Modern & Ad-Light
Clean interface, dark mode, and no popups — built to beat legacy tools.
What you get
- 7 categories: length, weight, temperature, volume, area, speed, time
- Live conversion as you type
- Accurate temperature formulas (C/F/K)
- One-click unit swap
- Wide range of everyday and scientific units
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