STIX Two Math Regular Version 2.12 b168 4600 characters in total, assigned to the following Unicode blocks:
Unicode blocks Percent Total codes Total charaters
Basic Latin
74.22%

74.22%

128 95
Latin-1 Supplement
75%

75%

128 96
Latin Extended-A
100%

100%

128 128
Latin Extended-B
21.63%

21.63%

208 45
IPA Extensions
100%

100%

96 96
Spacing Modifier Letters
76.25%

76.25%

80 61
Combining Diacritical Marks
65.18%

65.18%

112 73
Greek and Coptic
64.58%

64.58%

144 93
Cyrillic
41.41%

41.41%

256 106
Phonetic Extensions
2.34%

2.34%

128 3
Phonetic Extensions Supplement
14.06%

14.06%

64 9
Latin Extended Additional
97.66%

97.66%

256 250
General Punctuation
56.25%

56.25%

112 63
Superscripts and Subscripts
60.42%

60.42%

48 29
Currency Symbols
16.67%

16.67%

48 8
Combining Diacritical Marks for Symbols
62.5%

62.5%

48 30
Letterlike Symbols
100%

100%

80 80
Number Forms
18.75%

18.75%

64 12
Arrows
91.96%

91.96%

112 103
Mathematical Operators
100%

100%

256 256
Miscellaneous Technical
100%

100%

256 256
Control Pictures
3.13%

3.13%

64 2
Enclosed Alphanumerics
100%

100%

160 160
Box Drawing
35.16%

35.16%

128 45
Block Elements
25%

25%

32 8
Geometric Shapes
100%

100%

96 96
Miscellaneous Symbols
100%

100%

256 256
Dingbats
20.83%

20.83%

192 40
Miscellaneous Mathematical Symbols-A
93.75%

93.75%

48 45
Supplemental Arrows-A
100%

100%

16 16
Supplemental Arrows-B
100%

100%

128 128
Miscellaneous Mathematical Symbols-B
100%

100%

128 128
Supplemental Mathematical Operators
100%

100%

256 256
Miscellaneous Symbols and Arrows
25%

25%

256 64
CJK Symbols and Punctuation
3.13%

3.13%

64 2
Hiragana
1.04%

1.04%

96 1
Latin Extended-D
0.89%

0.89%

224 2
Private Use Area
7.11%

7.11%

6400 455
Alphabetic Presentation Forms
6.25%

6.25%

80 5
Specials
6.25%

6.25%

16 1
Mathematical Alphanumeric Symbols
97.27%

97.27%

1024 996
Arabic Mathematical Alphabetic Symbols
0.78%

0.78%

256 2
Total:
36.3%

36.3%

12672 4600