Temperature Converter Online — Celsius to Fahrenheit and Kelvin
Convert Celsius online to Fahrenheit and Kelvin with two-decimal output.
About this tool
This converter treats the input as Celsius and calculates °F with C×9/5+32 and Kelvin with C+273.15.
How to use
- Enter or select the required input.
- Run the tool with the intended options.
- Review the result before using or downloading it.
Features
- Celsius, Fahrenheit and Kelvin output.
- Two-decimal formatting.
- Accepts positive and negative values.
Common use cases
- Convert weather temperatures.
- Check science examples.
- Compare unit systems.
Common issues and tips
- Input is always interpreted as Celsius.
- Values below absolute zero are mathematically converted but not physically valid.
Privacy
Processing runs locally in your browser. Input is not uploaded to Tools12345.
Frequently asked questions
What is the input unit?
Celsius.
How is Fahrenheit calculated?
C×9/5+32.
Is Kelvin rounded?
It is displayed to two decimals.