U+03BC "μ" Greek Small Letter Mu Unicode Character

U+03BC "μ" Greek Small Letter Mu is the twelfth letter of the Greek alphabet and has widespread applications across mathematics and science. In mathematics, it commonly represents the population mean in statistics and the Möbius function in number theory, while in physics and engineering it denotes coefficients of friction, magnetic permeability, and the micron unit of length. It is distinct from the visually similar micro sign (U+00B5), which is used in measurement units such as micrometers and micrograms, though both are often displayed identically in most fonts.

General Properties

Code Point	U+03BC
Version Added	1.1
Name	Greek Small Letter Mu
Block	Greek and Coptic
General Category	Lowercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	μ
HTML Hex Encoding	μ
UTF-8 Encoding	0xCE 0xBC
UTF-16 Encoding	0x03BC
UTF-32 Encoding	0x000003BC
C/C++/Java Escape	\u03bc

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
East Asian Width	Ambiguous
Lowercase	Yes
Simple Uppercase Code Point	"Μ" U+039C Greek Capital Letter Mu
Simple Titlecase Code Point	"Μ" U+039C Greek Capital Letter Mu
Uppercase Code Point	"Μ" U+039C Greek Capital Letter Mu
Titlecase Code Point	"Μ" U+039C Greek Capital Letter Mu
Cased	Yes
Changes When Casemapped	Yes
Changes When Titlecased	Yes
Changes When Uppercased	Yes
Script	Greek
Script Extensions	Greek
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Lower