Temperature Conversion Formulas
The three main temperature scales used worldwide are Celsius, Fahrenheit and Kelvin.
Celsius to Fahrenheit
°F = (°C × 9/5) + 32. Example: 100°C = (100 × 9/5) + 32 = 212°F
Fahrenheit to Celsius
°C = (°F − 32) × 5/9. Example: 98.6°F = (98.6 − 32) × 5/9 = 37°C
Common Temperature References
- Water freezes: 0°C = 32°F
- Body temperature: 37°C = 98.6°F
- Water boils: 100°C = 212°F
- Room temperature: 22°C = 71.6°F
What temperature is the same in Celsius and Fahrenheit? +
−40°C equals exactly −40°F. That is the only point where both scales intersect.
What is absolute zero? +
Absolute zero is 0 Kelvin = −273.15°C = −459.67°F. It is the lowest possible temperature.