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Celsius to Fahrenheit Converter (°C to °F)

Convert between Celsius, Fahrenheit, and Kelvin in real time. Edit any field and the other two update, with a live temperature gauge from cold to hot.

−50°C50°C150°C
°C → °F: (°C × 9/5) + 32
°F → °C: (°F − 32) × 5/9
°C → K: °C + 273.15

Fun fact: −40°C and −40°F are exactly the same temperature — the crossover point of the two scales.

Common Temperature Reference

Description°C°F
Absolute zero-273-459
Water freezes032
Room temperature20–2268–72
Body temperature3798.6
Water boils100212
Oven (moderate)180356

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Frequently Asked Questions

How do I convert Celsius to Fahrenheit?
Multiply the Celsius temperature by 9/5 (or 1.8) and then add 32. For example, 100°C × 1.8 + 32 = 212°F.
How do I convert Fahrenheit to Celsius?
Subtract 32 from the Fahrenheit value and multiply by 5/9. For example, (98.6°F − 32) × 5/9 = 37°C.
At what temperature are Celsius and Fahrenheit equal?
Celsius and Fahrenheit are equal at exactly −40 degrees. −40°C = −40°F.
What is normal human body temperature in Celsius and Fahrenheit?
Normal human body temperature is approximately 37°C or 98.6°F.
What is the difference between Celsius, Fahrenheit, and Kelvin?
Celsius and Fahrenheit are scales for everyday temperature. Kelvin is the SI unit used in science, starting at absolute zero (0 K = −273.15°C). There are no negative Kelvin values.