What is the SI unit of temperature?

The SI unit of temperature is the kelvin, symbolized as K.

Kelvin (K) is used worldwide in science and engineering to measure temperature.

It starts from absolute zero, the lowest possible temperature where all molecular motion stops.

Unlike Celsius or Fahrenheit, kelvin does not use the word "degree" before its name.

• SI unit: kelvin (K)
• Zero point: Absolute zero (0 K)
• No degree sign: Just "K", not "°K"

Example:

Room temperature is about 293 K.

In summary, the SI unit for measuring temperature is the kelvin (K).