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Unicode alphabet

Bold I Letter

Copy the exact output for I/i, check its Unicode code point, and see whether this style preserves case or maps both forms to one symbol.

𝐈Input: uppercase I
𝐢Input: lowercase i
Case behavior: Uppercase I maps to 𝐈 and lowercase i maps to 𝐢. The two cases remain distinct in this style.

Unicode details for Bold I

InputOutputMappingCode point(s)HTML entity
I𝐈Distinct uppercase mappingU+1D408𝐈
i𝐢Distinct lowercase mappingU+1D422𝐢

Unicode alphabet. This style substitutes supported Latin letters, and digits when the set includes them, with assigned Unicode mathematical or letterlike characters. Unsupported characters stay unchanged. It is a character substitution, not CSS formatting or an installed font.

About this Bold I mapping

Bold I uses separate Mathematical Bold characters 𝐈 and 𝐢. Because capital I can be visually confused with other vertical glyphs in some fonts, verify the pasted result in the exact app where you plan to use it.

Bold examples for words beginning with I

The source words below begin with ordinary I. Copy the transformed result you want; effects such as Upside Down can also reorder a whole word.

𝐢𝐫𝐨𝐧Source: iron
𝐢𝐬𝐥𝐚𝐧𝐝Source: island
𝐢𝐯𝐨𝐫𝐲Source: ivory
𝐢𝐧𝐝𝐢𝐠𝐨Source: indigo
𝐢𝐧𝐟𝐞𝐫𝐧𝐨Source: inferno
𝐢𝐜𝐨𝐧Source: icon
𝐢𝐫𝐢𝐬Source: iris
𝐢𝐦𝐩𝐮𝐥𝐬𝐞Source: impulse

Want to type a full word? Open the Bold generator to transform your own text. To compare this same letter across the whole indexed set, see I in different fonts, or use the alphabet below to inspect another letter in Bold.

Bold A to Z

𝐚𝐛𝐜𝐝𝐞𝐟𝐠𝐡𝐢𝐣𝐤𝐥𝐦𝐧𝐨𝐩𝐪𝐫𝐬𝐭𝐮𝐯𝐰𝐱𝐲𝐳

Compare I in related styles

These alternatives were selected to show a useful contrast in weight, enclosure, spacing or case behavior.

𝗜Sans Bold ICompare Unicode mapping and case behavior.𝑰Bold Italic ICompare Unicode mapping and case behavior.𝐼Italic ICompare Unicode mapping and case behavior.ɪSmall Caps ICompare Unicode mapping and case behavior.𝙸Monospace ICompare Unicode mapping and case behavior.

FAQ

How do I copy and use 𝐈?
Use the Copy button above, paste the result into the field you want, and verify it before saving. Unicode support, fonts, moderation filters and character limits can differ between apps and devices.
Why can the same Unicode letter look different on another device?
The code point stays the same, but the receiving operating system or app chooses the font that draws it. Shape, weight, spacing or fallback rendering can therefore vary even when the copied character itself has not changed.
What is the Bold letter I?
For uppercase I, Stylish Font Generator outputs 𝐈 (U+1D408). For lowercase i, it outputs 𝐢 (U+1D422). Uppercase I maps to 𝐈 and lowercase i maps to 𝐢. The two cases remain distinct in this style.
Do uppercase I and lowercase i stay different in Bold?
Uppercase I maps to 𝐈 and lowercase i maps to 𝐢. The two cases remain distinct in this style.