Convert Celsius, Fahrenheit, Kelvin, Réaumur, and Rankine instantly
Automatically convert all units based on 1 source unit. Click a row to set that unit as the target.
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Temperature unit conversion means converting a temperature expressed on one scale to another scale, such as converting Celsius to Fahrenheit or Celsius to Kelvin. Different temperature scales have different zero points and relationships between their graduations, so the corresponding formulas must be used.
The tool supports conversions between Celsius, Fahrenheit, Kelvin, Reaumur and Rankine. It can be used for everyday temperatures, physics learning and technical calculations.
The formula for converting Celsius to Fahrenheit is: ℉ = ℃ × 9/5 + 32; the formula for converting Fahrenheit to Celsius is: ℃ = (℉ − 32) × 5/9.
The numerical relationship between Kelvin and Celsius is: K = ℃ + 273.15.
0 ℃ = 32 ℉; 100 ℃ = 212 ℉; −40 ℃ = −40 ℉. Absolute zero is equal to 0 K, or −273.15 ℃.
Temperature conversion is commonly used for weather temperatures, cooking, experiments, technical equipment, and converting data between different ways of expressing temperature in different countries and regions.
To convert Celsius to Fahrenheit, use ℉ = ℃ × 9/5 + 32; to convert Fahrenheit to Celsius, use ℃ = (℉ − 32) × 5/9.
0 ℃ equals 32 ℉.
100 ℃ equals 212 ℉.
Kelvin and Celsius have the same interval between graduations, but their zero points are different. 0 ℃ equals 273.15 K.
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