What is the difference between Mathematical Bold Script Capital O and Latin Capital Letter O?

Mathematical Bold Script Capital O is U+1D4DE in the Mathematical Alphanumeric Symbols block. Latin Capital Letter O is U+004F 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 Bold Script Capital O?

The HTML entity for Mathematical Bold Script Capital O (U+1D4DE) is 𝓞.

What is the HTML entity for Latin Capital Letter O?

The HTML entity for Latin Capital Letter O (U+004F) is O.

Are Mathematical Bold Script Capital O and Latin Capital Letter O the same Unicode character?

No. Mathematical Bold Script Capital O is U+1D4DE (decimal 120030) and Latin Capital Letter O is U+004F (decimal 79). They are separate codepoints.

What are the UTF-8 encodings of Mathematical Bold Script Capital O and Latin Capital Letter O?

Mathematical Bold Script Capital O (U+1D4DE) encodes as F0 9D 93 9E in UTF-8. Latin Capital Letter O (U+004F) encodes as 4F in UTF-8.

Mathematical Bold Script Capital O vs Latin Capital Letter O

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.

𝓞

Mathematical Bold Script Capital O

U+1D4DE

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Latin Capital Letter O

U+004F

Full details →

Property Comparison

Property	Mathematical Bold Script Capital O	Latin Capital Letter O
Codepoint	`U+1D4DE`	`U+004F`
Decimal	`120030`	`79`
HTML Entity	`𝓞`	`O`
HTML Decimal	`𝓞`	`O`
HTML Hex	`𝓞`	`O`
UTF-8	`F0 9D 93 9E`	`4F`
UTF-16	`D8 35 DC DE`	`00 4F`
UTF-32	`0001D4DE`	`0000004F`
CSS Escape	`\1D4DE`	`\4F`
JS Escape	`\uD835\uDCDE`	`\u004F`
Python Escape	`\U0001D4DE`	`\u004F`
URL Encoded	`%F0%9D%93%9E`	`O`
Category	`Uppercase Letter (Lu)`	`Uppercase Letter (Lu)`
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.

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Frequently confused character pairs.

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