What is the difference between Mathematical Sans-serif Italic Small X and Latin Small Letter X?

Mathematical Sans-serif Italic Small X is U+1D639 in the Mathematical Alphanumeric Symbols block. Latin Small Letter X is U+0078 in the Basic Latin block. They are distinct Unicode codepoints and may appear visually similar depending on the font.

What is the HTML entity for Mathematical Sans-serif Italic Small X?

The HTML entity for Mathematical Sans-serif Italic Small X (U+1D639) is 𝘹.

What is the HTML entity for Latin Small Letter X?

The HTML entity for Latin Small Letter X (U+0078) is x.

Are Mathematical Sans-serif Italic Small X and Latin Small Letter X the same Unicode character?

No. Mathematical Sans-serif Italic Small X is U+1D639 (decimal 120377) and Latin Small Letter X is U+0078 (decimal 120). They are separate codepoints.

What are the UTF-8 encodings of Mathematical Sans-serif Italic Small X and Latin Small Letter X?

Mathematical Sans-serif Italic Small X (U+1D639) encodes as F0 9D 98 B9 in UTF-8. Latin Small Letter X (U+0078) encodes as 78 in UTF-8.

Mathematical Sans-serif Italic Small X vs Latin Small Letter X

Compare two Unicode characters side by side — encodings, HTML entities, escape sequences, and Unicode properties. Useful for distinguishing visually similar characters like hyphens and dashes, quotation marks, or homoglyphs.

𝘹

Mathematical Sans-serif Italic Small X

U+1D639

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Latin Small Letter X

U+0078

Full details →

Property Comparison

Property	Mathematical Sans-serif Italic Small X	Latin Small Letter X
Codepoint	`U+1D639`	`U+0078`
Decimal	`120377`	`120`
HTML Entity	`𝘹`	`x`
HTML Decimal	`𝘹`	`x`
HTML Hex	`𝘹`	`x`
UTF-8	`F0 9D 98 B9`	`78`
UTF-16	`D8 35 DE 39`	`00 78`
UTF-32	`0001D639`	`00000078`
CSS Escape	`\1D639`	`\78`
JS Escape	`\uD835\uDE39`	`\u0078`
Python Escape	`\U0001D639`	`\u0078`
URL Encoded	`%F0%9D%98%B9`	`x`
Category	`Lowercase Letter (Ll)`	`Lowercase Letter (Ll)`
Block	`Mathematical Alphanumeric Symbols`	`Basic Latin`
Script	`Common`	`Latin`
Bidi Class	`L`	`L`
Unicode Version	`3.1`	`1.1`

Rows highlighted in amber differ between the two characters.

Common Comparisons

Frequently confused character pairs.

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