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 Italic I
Input
Output
Mapping
Code point(s)
HTML entity
I
𝑰
Distinct uppercase mapping
U+1D470
𝑰
i
𝒊
Distinct lowercase mapping
U+1D48A
𝒊
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.
Bold Italic 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 Italic 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 Italic.
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 Italic letter I?
For uppercase I, Stylish Font Generator outputs 𝑰 (U+1D470). For lowercase i, it outputs 𝒊 (U+1D48A). 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 Italic?
Uppercase I maps to 𝑰 and lowercase i maps to 𝒊. The two cases remain distinct in this style.
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.