🔒 100% Client-Side
🔄 Unit Converter
Convert between different units
Result will appear here
Convert between different units
All conversions happen in your browser. Your data never leaves your device.
No uploading or downloading. Convert units instantly in your browser.
Once loaded, works without internet connection.
No subscriptions, no hidden costs, completely free.
This unit converter runs entirely in your browser using JavaScript. When you convert between units, the calculation happens completely on your device. We never upload your conversion data to any server, which means your measurements and values remain completely private and secure.
Unlike online services that require data uploads, our client-side approach ensures zero data collection, zero server processing, and zero privacy concerns. Your conversion data never leaves your computer.
Our unit converter supports temperature (Celsius, Fahrenheit, Kelvin), length (meters, feet, kilometers, miles), and weight (kilograms, pounds, grams, ounces), covering the most common conversion needs for daily use.
All conversions use standard mathematical formulas with high precision calculations. Results are accurate to multiple decimal places, suitable for both everyday use and professional applications.
You can convert between any units within the same category (e.g., any length unit to any other length unit), but you cannot convert between different categories (e.g., temperature to weight) as they measure different physical properties.
Yes! This tool is completely free with no hidden costs or subscriptions. We believe privacy-first tools should be accessible to everyone.
We use Google Analytics to track page views for website improvement, but we never see, store, or collect your conversion data. All processing happens locally in your browser.