Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin.
About the Temperature Converter
Celsius, Fahrenheit, and Kelvin are the three temperature scales used across science, weather, and everyday life in different countries. This converter switches between all three instantly.
It's useful for travel, cooking with recipes from another region, or scientific work that requires Kelvin.
How to Use This Tool
- 1Enter a temperature value.
- 2Select the unit you're converting from and to.
- 3The result updates instantly.
Temperature conversion formulas
Celsius to Fahrenheit: °F = (°C × 9/5) + 32.
Fahrenheit to Celsius: °C = (°F − 32) × 5/9.
Celsius to Kelvin: K = °C + 273.15.
Frequently Asked Questions
Why does Kelvin not use degrees?
Kelvin is an absolute temperature scale where zero represents absolute zero — the theoretical point of no thermal energy — so it's written as a plain number (e.g., 300 K) rather than 'degrees Kelvin'.
What temperature is the same in Celsius and Fahrenheit?
−40°C equals −40°F — the only point where the two scales intersect.
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