Temperature Converter
Enter a temperature, pick your From and To units, and get the converted value instantly.
Overview
Unlike most units, temperature scales don't share a common zero point, so converting between them needs an offset as well as a scale factor — you can't just multiply. This tool handles Celsius, Fahrenheit, and Kelvin with the correct formulas for each direction, and flags a result that would fall below absolute zero.
Examples & Sample Data
Celsius to Fahrenheit
100°C
212°F
Fahrenheit to Kelvin
98.6°F
310.15 K
How It Works
- Enter the temperature value.
- Choose the From unit and the To unit.
- The converted value appears instantly.
Common Use Cases
Weather and travel
Convert a forecast from Fahrenheit to Celsius (or the reverse) when reading weather from another country.
Science and cooking
Convert oven temperatures or lab measurements between Celsius, Fahrenheit, and Kelvin.
Tips & Best Practices
- Kelvin has no negative values — 0 K (absolute zero) is −273.15°C. The tool rejects inputs or results that would fall below that.
Frequently Asked Questions
No. Every conversion runs locally in your browser.
Every conversion goes through Celsius as an intermediate step: °C = (°F − 32) × 5/9 and K = °C + 273.15, then reversed for the target unit.
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