μ Mu Symbol
Mu (μ) is the Greek letter used for the mean in statistics and the micro- prefix; for units the identical-looking micro sign µ (U+00B5) is preferred.
Also known as: mu sign statistics, mew symbol statistics, mu symbol, micro symbol, population mean symbol, symbol of population mean, greek small letter mu, micron, µ.
Codes
| Symbol (Greek mu) | μ | |
| Micro sign (for units) | µ · U+00B5 | |
| Unicode | U+03BC | |
| HTML entity (named) | μ | |
| HTML entity (decimal) | μ | |
| HTML entity (hex) | μ | |
| CSS | \03BC | |
| LaTeX | \mu |
How to type μ (Mu Symbol)
Alt + 230 gives µ (the micro sign, U+00B5) — identical in look and correct for units like µm. For the exact Greek letter μ, type 03BC then Alt + X in Word, or use the Win + . symbol panel.
Option + m gives µ (the micro sign). For the exact Greek letter μ, open Character Viewer (Control + Cmd + Space) and search “greek small letter mu”.
Type 03BC then Alt + X for the Greek letter μ (use 00B5 then Alt + X for the micro sign µ).
Insert → Special characters, then search “mu” (Greek letter) or “micro”.
Use \mu in math mode.
Usage
- In statistics, μ denotes the population mean.
- In physics and engineering, μ is the coefficient of friction and the micro- prefix (10⁻⁶), as in µm (micrometers).
- Tip: use the micro sign µ (U+00B5) for units and the Greek letter μ (U+03BC) in math — they look identical but are different characters.