Converters
Temperature Converter
Convert Celsius to Fahrenheit and Kelvin instantly with the standard temperature formulas.
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Version 1.0.0 · Last reviewed
Tool
Result
Live output from your inputs
Enter values and calculate to see results.
How it worksShow guideHide guide
Introduction
The temperature converter turns Celsius into Fahrenheit and Kelvin — useful for weather, cooking, science homework, and travel.
Formula
Convert Celsius to Fahrenheit and Kelvin using the standard linear temperature formulas.
- C — Temperature in Celsius
- F — Temperature in Fahrenheit
- K — Temperature in Kelvin
Step-by-step
- Enter the temperature in Celsius.
- Multiply by 9/5 and add 32 for Fahrenheit.
- Add 273.15 for Kelvin.
Worked example
25°C converts to 77°F and 298.15 K.
Use cases
- Convert weather forecasts between °C and °F
- Check oven or recipe temperatures
- Express temperatures on the absolute Kelvin scale
Frequently asked questions
What is absolute zero in Celsius?
Absolute zero is −273.15°C, which equals 0 K. This calculator rejects values below that.
How do I convert Fahrenheit to Celsius?
Use C = (F − 32) × 5/9. This tool currently takes Celsius as the input and outputs Fahrenheit and Kelvin.
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