U+324A Circled Number Thirty On Black Square

U+324A was added in Unicode version 5.2 in 2009. It belongs to the block U+3200 para U+32FF Enclosed CJK Letters and Months in the U+0000 para U+FFFF Basic Multilingual Plane.

This character is a Other Number and is commonly used, that is, in no specific script. The codepoint has the numeric value 30. El carácter es también conocido como speed limit 30 km/h.

The glyph is not a composition. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it is written from left to right. When changing direction it is not mirrored. If its East Asian Width is “narrow”, U+324A forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts.