StraightToolsTemperature Converter
Convert Celsius, Fahrenheit, and Kelvin.
Temperature formulas
Fahrenheit to Celsius: (°F − 32) × 5/9. Celsius to Fahrenheit: (°C × 9/5) + 32.
When to use this tool
Use this converter to translate temperatures among Fahrenheit, Celsius, and Kelvin for weather, cooking, science, or travel.
How the result is calculated
Fahrenheit to Celsius uses (F − 32) × 5/9. Celsius to Fahrenheit uses C × 9/5 + 32. Kelvin and Celsius have the same interval size, with 0°C equal to 273.15 K.
Worked example
A room temperature of 72°F is about 22.22°C. Water freezes at 32°F, 0°C, or 273.15 K under standard reference conditions.
What to keep in mind
Temperature conversions are mathematical. Real-world boiling and freezing points can shift with pressure, altitude, dissolved substances, and measurement conditions.
About our calculations
StraightTools is designed to show the method behind the answer, not just the result. Inputs are handled in your browser for this tool. For important financial, legal, medical, tax, safety, or contractual decisions, verify the result with an appropriate authoritative source or qualified professional.