Temperature Converter
Convert Celsius, Fahrenheit, Kelvin and Rankine.
Input
This tool runs entirely in your browser. The data you paste or load is never uploaded.
Result
Enter your input, then run the tool.
About this tool
Converts between the four temperature scales and shows all of them at once, including the formulas. Handles negative values and warns below absolute zero, where the input is physically impossible.
How to use it
- Enter the temperature and pick its scale.
- Read all four conversions.
- Check the warning if a value is below absolute zero.
Frequently asked questions
What is absolute zero in Fahrenheit?
−459.67 °F, which equals 0 K and −273.15 °C.
Why is the Rankine scale included?
Some US engineering fields still use it; it is Fahrenheit-sized but starts at absolute zero.
Keep going
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