About

Standard Latin characters map to dedicated Unicode blocks for circled representations. The Circled Latin block occupies code points U+24B6 - U+24EA for uppercase and U+24D0 - U+24E9 for lowercase. Circled digits span U+2460 - U+2469 with zero at U+24EA. This generator performs a direct character-by-character substitution across those blocks. Characters outside the mapped set pass through unmodified. The output is plain Unicode text, requiring no special fonts or rendering support. Copy-paste compatibility depends on the target platform's font coverage. Most modern systems render circled Latin correctly. Negative circled (black bubble) variants use U+1F150 - U+1F169 and may display as emoji on some systems.

Platform support varies. Twitter, Instagram, Facebook, and Discord render standard circled Latin reliably. Black bubble characters may appear as square emoji glyphs on older Android devices. Test output on your target platform before committing to a bio or display name. This tool does not alter encoding. The output is UTF-8 compatible Unicode.

Formulas

The conversion algorithm applies a direct code-point offset mapping. For each input character c, the output character c′ is computed as:

c′ = map(c) = CharCodeLookup[c]

For uppercase letters (c ∈ A - Z), the bubble variant uses an offset from the base code point:

c′ = 0x24B6 + (charCode(c) − 0x41)

For lowercase letters (c ∈ a - z):

c′ = 0x24D0 + (charCode(c) − 0x61)

For digits (c ∈ 1 - 9):

c′ = 0x2460 + (charCode(c) − 0x31)

Digit 0 maps to U+24EA (special case). The black bubble variant uses Negative Circled block at U+1F150 for uppercase. Characters with no circled Unicode equivalent are returned unmodified. The total character set coverage is 62 alphanumeric characters per style.

Where c = input character, c′ = output bubble character, charCode = UTF-16 code unit value, map = lookup function returning the corresponding circled Unicode character.

Reference Data

Character	Bubble (Circled)	Code Point	Black Bubble	Code Point
A	Ⓐ	U+24B6	🅐	U+1F150
B	Ⓑ	U+24B7	🅑	U+1F151
C	Ⓒ	U+24B8	🅒	U+1F152
D	Ⓓ	U+24B9	🅓	U+1F153
E	Ⓔ	U+24BA	🅔	U+1F154
F	Ⓕ	U+24BB	🅕	U+1F155
G	Ⓖ	U+24BC	🅖	U+1F156
H	Ⓗ	U+24BD	🅗	U+1F157
I	Ⓘ	U+24BE	🅘	U+1F158
J	Ⓙ	U+24BF	🅙	U+1F159
K	Ⓚ	U+24C0	🅚	U+1F15A
L	Ⓛ	U+24C1	🅛	U+1F15B
M	Ⓜ	U+24C2	🅜	U+1F15C
N	Ⓝ	U+24C3	🅝	U+1F15D
O	Ⓞ	U+24C4	🅞	U+1F15E
P	Ⓟ	U+24C5	🅟	U+1F15F
Q	Ⓠ	U+24C6	🅠	U+1F160
R	Ⓡ	U+24C7	🅡	U+1F161
S	Ⓢ	U+24C8	🅢	U+1F162
T	Ⓣ	U+24C9	🅣	U+1F163
U	Ⓤ	U+24CA	🅤	U+1F164
V	Ⓥ	U+24CB	🅥	U+1F165
W	Ⓦ	U+24CC	🅦	U+1F166
X	Ⓧ	U+24CD	🅧	U+1F167
Y	Ⓨ	U+24CE	🅨	U+1F168
Z	Ⓩ	U+24CF	🅩	U+1F169
a	ⓐ	U+24D0	-	-
0	⓪	U+24EA	⓿	U+24FF
1	①	U+2460	❶	U+2776
5	⑤	U+2464	❺	U+277A
9	⑨	U+2468	❾	U+277E

Frequently Asked Questions

Circled Latin characters in the Enclosed Alphanumerics block (U+24B6 - U+24EA) have broad font support and render on virtually all modern systems. However, Negative Circled characters (U+1F150 - U+1F169) fall within the Enclosed Alphanumeric Supplement block, which is classified alongside emoji. Older Android versions (pre-8.0) and some Linux terminal fonts lack glyphs for this range. If you see empty boxes, the target device's font does not include that Unicode block. Stick to the standard Bubble style for maximum compatibility.

Search engines like Google normalize Unicode text during indexing, but circled Latin characters are not consistently mapped back to their ASCII equivalents. Text written as Ⓗⓔⓛⓛⓞ will likely not rank for the keyword "hello". Use bubble text only for decorative purposes in social media bios, display names, or stylistic headings. Never use it for body content intended to be indexed.

Circled characters in the Basic Multilingual Plane (U+24xx) occupy a single UTF-16 code unit, same as standard ASCII. They count as one character on Twitter, Instagram, and Facebook. Negative Circled characters (U+1F1xx) are in the Supplementary Multilingual Plane and require a surrogate pair in UTF-16, meaning they may count as 2 characters on platforms that measure length by code units rather than code points. Twitter counts by code points, so both styles count as 1 character there.

The Unicode Consortium defined Negative Circled Latin Capital Letters (U+1F150 - U+1F169) but did not include a corresponding lowercase set. This is a deliberate omission in the Unicode standard (as of version 15.1). There is no workaround. The generator maps lowercase input to the uppercase Negative Circled equivalent when Black Bubble style is selected, which is the standard practice.

Yes. The mapping is bijective for the 62 alphanumeric characters. A reverse lookup table can convert Ⓐ back to A by subtracting the offset: charCode(Ⓐ) − 0x24B6 + 0x41 = 0x41 = "A". This generator does not include reverse conversion, but the mathematical inverse is trivial. Unmapped characters (punctuation, spaces, emoji) pass through in both directions, so no information is lost.

Unicode does not define circled variants for non-Latin scripts. The generator passes these characters through unmodified. Input "Привет" outputs "Привет" unchanged. There are Enclosed CJK Letters (U+3200 - U+32FF) for some Korean and CJK ideographs, but they follow different conventions and are not included in this generator's mapping table.