Code point
U+33A6
Glyph appearance depends on your fonts.
U+33A6
So<square> 006B 006D 00B3U+33A6 SQUARE KM CUBED is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the CJK Compatibility block.
Choose the representation you need, then copy its value.
U+33A6
13222
㎦
㎦
E3 8E A6
33A6
000033A6
%E3%8E%A6
\u33A6
\u33A6
\u33A6
\33A6