Universal Unit Converter Free
Convert between metric and imperial units for length, weight, temperature, speed, area, and digital data.
- 100% free
- Files stay on your device
- No sign-up, no watermark
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What is Universal Unit Converter?
Convert engineering and everyday units across metric and imperial systems. Features precision conversion coefficients for meters, feet, kilograms, pounds, Celsius, Fahrenheit, and digital megabytes to gigabytes.
How to use Universal Unit Converter
- 1
Add your file or input
Choose a supported file, drag it onto the upload area, or type/paste the data this tool works with.
- 2
Adjust the options
Pick the output format, quality, size or other settings the tool offers. Defaults work well for most files.
- 3
Process and download
Run the tool and save the result. Processing happens in your browser, so nothing is uploaded to a server.
Frequently asked questions
How does the temperature converter calculate Celsius to Fahrenheit?
Temperature conversions use the standard thermodynamic equation: °F = (°C × 9/5) + 32, and °C = (°F - 32) × 5/9, with Kelvin calculations offset by 273.15.
Are digital storage conversions based on 1000 or 1024 bytes?
You can toggle between decimal SI units (1 KB = 1,000 bytes) and binary IEC units (1 KiB = 1,024 bytes) to match Windows or macOS reporting.
Can I convert compound units like miles per hour to kilometers per hour?
Yes! Velocity and speed conversions between mph, km/h, knots, and meters per second are fully supported.
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