What ㎍ means
㎍ means one microgram, usually written μg. A microgram is one millionth of a gram. The square character combines Greek mu, the metric prefix for one millionth, and Latin g, the symbol for gram, in one character cell; μg takes two characters.
The square form belongs to an East Asian set of compact unit signs inherited from earlier character sets and associated with Japanese Industrial Standards (JIS). These forms kept unit abbreviations in a fixed-width cell and helped older text layouts and data interchange remain compatible.
Does ㎍ normalize to μg?
Yes, with compatibility normalization. NFKC and NFKD are text-normalization modes that expand compatibility characters such as ㎍ into μg. This helps standardized text comparison, but exact-character matching can distinguish ㎍ from its two-character expansion.
Don't confuse it with
1μg The difference between ㎍ and μg is character count: ㎍ is one compatibility character; μg is two characters for the same unit.
Related characters
2
Questions people ask
1Why does ㎍ show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
More like this
9
How to type or find ㎍
- Search it as
- mcg · ug · μg · ㎍ · microgram · micrograms
- Shows up in
- Anything that takes text · its shape is whatever your font draws
Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.