HTML Entity for Double Prime (″)
What You'll Learn
How to display the Double Prime (″) in HTML using named, hexadecimal, decimal, and CSS entity methods. This character is U+2033 (DOUBLE PRIME) in the General Punctuation block (U+2000–U+206F)—used for inches, seconds (time or angle), and the second derivative in mathematics.
Render it with ″, ″, ″, or CSS escape \2033. Pair with ′ (′) for single prime (feet, minutes, first derivative): 5′ 10″.
⚡ Quick Reference — Double Prime
U+2033General Punctuation block
″Hexadecimal reference
″Decimal reference
″Most readable option
Name Value
──────────── ──────────
Unicode U+2033
Hex code ″
HTML code ″
Named entity ″
CSS code \2033Complete HTML Example
This example demonstrates the Double Prime (″) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\2033";
}
</style>
</head>
<body>
<p>Double Prime using Hexadecimal: ″</p>
<p>Double Prime using HTML Code: ″</p>
<p>Double Prime using Named Entity: ″</p>
<p id="point">Double Prime using CSS Entity: </p>
</body>
</html>🌐 Browser Support
U+2033 is widely supported in modern browsers; General Punctuation glyphs render in virtually all fonts:
👀 Live Preview
See the Double Prime (″) in measurements and math notation:
🧠 How It Works
Named Entity
″ is the HTML named entity for the Double Prime (″) — capital P in Prime distinguishes it from ′ (′).
Hexadecimal Code
″ uses the Unicode hexadecimal value 2033 to display the Double Prime symbol. The x prefix indicates hexadecimal format.
Decimal HTML Code
″ uses the decimal Unicode value 8243 to display the same character.
CSS Entity
\2033 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Same visual result
All four methods produce: ″. Unicode U+2033. Pair with ′ (′) for feet/minutes or first derivative. Do not confuse with straight quotes (").
Use Cases
The Double Prime symbol (″) commonly appears in the following scenarios:
Length measurements (e.g. 5″ display, 10″ diameter). Often with ′ for feet: 5′ 10″.
Time (3′ 45″) or arc seconds in coordinates (30° 15′ 20″).
Second derivative notation (e.g. f″(x), y″). Single prime ′ for first derivative.
Formal typesetting where the double prime is preferred over straight quotes for measurements.
HTML entity lists and typography guides for General Punctuation.
Pair measurements with clear context or units (e.g. “5 inches”) for screen readers.
💡 Best Practices
Do
- Prefer
″for readable HTML source - Pair ″ with
′(′) for feet/inches or derivatives - Use typographic primes instead of straight quotes (") for measurements
- Provide context for screen readers on measurement pages
- Pick one entity style per project for consistency
Don’t
- Confuse
″(″) with′(′) or straight quotes (") - Use CSS escape
\2033inside HTML markup - Use double prime for quotation marks—use proper quote entities instead
- Forget UTF-8 (
<meta charset="utf-8">) in your document - Assume every font distinguishes ′ and ″ clearly
Key Takeaways
Four ways to render ″ in HTML
″ ″ ″For CSS stylesheets, use the escape in the content property
\2033Unicode U+2033 — inches, seconds, second derivative
Prefer ″ for readability in HTML source
Feet and inches: 5′ 10″
❓ Frequently Asked Questions
″ (named), ″ (hex), ″ (decimal), or \2033 in CSS content. All produce ″.U+2033 (DOUBLE PRIME). General Punctuation block. Hex 2033, decimal 8243. Used for inches, seconds, and second derivative notation.″ or ″) and the named entity ″ go in markup. The CSS escape \2033 is used in stylesheets, typically in the content property of pseudo-elements.″ (capital P in Prime) is the named HTML entity for U+2033. It renders as ″. For single prime use ′ (′).Explore More HTML Entities!
Discover 1500+ HTML character references — punctuation, symbols, and more.
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