Convert between Celsius, Fahrenheit and Kelvin — the three temperature scales you meet in weather reports, recipes, and science. Enter a value in any field and the other two update instantly.
Kelvin is the SI base unit of temperature and uses the same degree size as Celsius, just offset by 273.15. Fahrenheit conversions use the exact formulas: °F = °C × 9/5 + 32 and K = °C + 273.15.
Frequently asked questions
What is 37 °C in Fahrenheit?
98.6 °F — normal human body temperature.
At what temperature do Celsius and Fahrenheit agree?
At −40 degrees: −40 °C and −40 °F are the same temperature.
Can temperatures go below 0 Kelvin?
No. Absolute zero (0 K) is the theoretical lower limit of temperature.
中文说明
在摄氏度、华氏度、开尔文这三个温度标度之间换算——分别对应天气预报、美式食谱和科学研究中的常见场景。在任意一栏输入，其余两栏即时更新。
开尔文是国际单位制的基本温度单位，刻度间隔与摄氏度相同，仅偏移 273.15。华氏度换算采用精确公式：°F = °C × 9/5 + 32。
常见问题
37 摄氏度是华氏多少度？
98.6 °F，即正常人体体温。
摄氏和华氏在什么温度数值相等？
在 −40 度：−40 °C 与 −40 °F 是同一个温度。
温度可以低于 0 开尔文吗？
不可以，绝对零度（0 K）是温度的理论下限。