Temperature Converter

Convert any
temperature

Celsius, Fahrenheit, Kelvin, Rankine, Delisle, Newton & Réaumur — all at once, instantly.

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Enter a temperature below

°C Celsius

°F Fahrenheit

K Kelvin

°R Rankine

°De Delisle

°N Newton

°Ré Réaumur

°C

Reference temperatures

Reference point

°C

°F

🔵 Absolute zero

−273.15

−459.67

🧊 Coldest recorded (Earth)

−89.2

−128.6

183.9

❄️ °C = °F crossover

−40

233.15

🧊 Water freezing point

273.15

🏠 Room temperature

293.15

🧑 Human body temperature

98.6

310.15

♨️ Water boiling point

100

212

373.15

🔥 Hottest recorded (Earth)

56.7

134.1

329.85

☀️ Surface of the Sun

5,505

9,941

5,778

Click any reference temperature to load it into the converter.

Conversion formulas

°C to °F

(°C × 9/5) + 32

°F to °C

(°F − 32) × 5/9

°C to K

°C + 273.15

K to °C

K − 273.15

°C to °R (Rankine)

(°C + 273.15) × 9/5

°C to °De (Delisle)

(100 − °C) × 3/2

°C to °N (Newton)

°C × 33/100

°C to °Ré (Réaumur)

°C × 4/5