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Convert temperature between Celsius, Fahrenheit, and Kelvin simultaneously.
Celsius
100 C
Fahrenheit
212 F
Kelvin
373.15 K
Temperature Formulas:
F = C x (9/5) + 32
C = (F - 32) x (5/9)
K = C + 273.15
C = K - 273.15
Absolute zero is 0 K = -273.15 C = -459.67 F. It is the theoretical lowest possible temperature where molecular motion stops.
Celsius and Fahrenheit are equal at -40 degrees. At -40, both scales read the same value.
Normal human body temperature is approximately 98.6 F (37 C). This can vary slightly by individual and measurement method.
The US adopted Fahrenheit in the early colonial era and never switched to Celsius when the metric system was standardized. Fahrenheit is one of only three countries still using it primarily.
Water boils at 100 C, 212 F, and 373.15 K at standard atmospheric pressure (1 atm / 101.325 kPa).