Code point
U+2103
Glyph appearance depends on your fonts.
U+2103
So<compat> 00B0 0043U+2103 DEGREE CELSIUS is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Letterlike Symbols block.
Choose the representation you need, then copy its value.
U+2103
8451
℃
℃
E2 84 83
2103
00002103
%E2%84%83
\u2103
\u2103
\u2103
\2103