Free Unit Converter — Length, Weight & Temperature
Convert between hundreds of units across five categories with our free Unit Converter. Length (meters, feet, inches, miles, km), weight (kg, lbs, oz, grams), temperature (Celsius, Fahrenheit, Kelvin), speed (km/h, mph, m/s, knots), and area (sq meters, sq feet, acres, hectares). Enter a value in any unit and see instant conversions across all related units simultaneously.
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How to use the Unit Converter
- Open the tool — Visit this page in any browser. No account, download, or installation required. Works on desktop, tablet, and mobile.
- Enter your content — Convert between hundreds of units across five categories with our free Unit Converter.
- Get your result instantly — All processing happens in your browser. Copy, download, or share your result immediately. Your data never leaves your device.