What is the symbol for the micro prefix?

The symbol for the micro prefix is indeed represented by the character "u," which is derived from the Greek letter mu (μ). This prefix signifies a factor of one millionth (10^-6) of a unit. The use of "u" as the micro symbol is widely adopted in scientific and engineering contexts to indicate very small values, such as in measurements of length (micrometers), mass (micrograms), and other quantities.

In contrast, other symbols such as "m," "n," and "p" refer to different prefixes: "m" denotes milli (10^-3), "n" stands for nano (10^-9), and "p" is the symbol for pico (10^-12). Each of these prefixes has distinct meanings and applications, emphasizing the importance of using the correct symbol to represent the appropriate scale in measurements. Understanding these prefixes is critical for precision in fields like calibration, engineering, and science.