Unit Converter
Convert length, weight, temperature, area, volume, speed, data, and time units. Free online unit converter.
Quick Reference
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Frequently Asked Questions
How does the unit converter work?
All conversions are performed locally in your browser. Each category uses a base unit for intermediate conversion: meters for length, kilograms for weight, Kelvin for temperature, etc. The tool converts your input to the base unit, then from the base unit to the target unit.
What measurement systems are supported?
The converter supports both Metric (SI) and Imperial (US/UK) systems. For example, length supports meters, kilometers, miles, feet, inches, yards, nautical miles, and more. Temperature supports Celsius, Fahrenheit, and Kelvin.
Is this tool accurate?
Yes, all conversion factors use precise scientific values. For example, 1 inch = 25.4 millimeters exactly, 1 pound = 0.45359237 kilograms exactly. The results are displayed with up to 10 decimal places for precision.
Can I use this offline?
Since all calculations happen in your browser, the tool works as long as the page is loaded. No internet connection is needed for conversions after the page has loaded.
Is this tool free?
Yes, completely free with no sign-up required. All data stays in your browser โ nothing is uploaded to any server.