About This Unit Converter
This tool bundles three of the most frequently needed converters into one page: length, weight, and temperature. Each converter uses precise, standard conversion factors — for example 1 mile equals exactly 1,609.344 meters and 1 pound equals exactly 0.45359237 kilograms — so results are accurate to several decimal places, not rounded approximations.
Temperature Conversion Notes
Unlike length and weight, temperature scales don't share a common zero point, so conversions use dedicated formulas rather than a simple multiplier: Fahrenheit = Celsius × 9/5 + 32, and Kelvin = Celsius + 273.15. This calculator converts through Celsius internally regardless of which two units you select, ensuring accurate results between any pair.
FAQ
How precise are the length and weight conversions?
The calculator uses internationally standardized conversion factors (e.g., 1 inch = 2.54 cm exactly) and displays results rounded to a reasonable number of decimal places for readability.
Can I convert from any unit to any other unit within the same category?
Yes, within each converter (length, weight, temperature) you can pick any "from" and "to" combination, including converting a unit to itself.
Why is there no volume converter?
This page focuses on the three most commonly requested conversion types. Additional converters may be added in the future.