Temperature Converter
Convert temperatures between Celsius, Fahrenheit, and Kelvin. Type a value and the converted temperature updates instantly, using the exact conversion formulas.
About Temperature Converter
This temperature converter moves between the three scales people use most: Celsius, Fahrenheit, and Kelvin. It applies the correct formula for each pair, so the result is accurate rather than a rough estimate.
Use it for weather, cooking, science homework, and travel, where a quick and correct conversion between scales saves time.
How to Use
- Enter the temperature you want to convert.
- Choose the scale you are converting from.
- Choose the scale you are converting to.
- Read the converted temperature, or swap the direction.
Frequently Asked Questions
How do I convert Celsius to Fahrenheit?
Multiply the Celsius value by nine fifths and add 32. The tool does this for you, so just enter the Celsius value and choose Fahrenheit.
What is Kelvin used for?
Kelvin is the base unit of temperature in science, where zero Kelvin is absolute zero. To go from Celsius to Kelvin you add 273.15.
Is the tool accurate?
Yes. It uses the exact conversion formulas, so the results match what you would get by hand.
About Matt George
I'm Matt George, a software engineer in the startup space. I run my own shop building software for early-stage founders, and I love making free tools and experiences that people actually use. Enjoy using Temperature Converter!