HTML Entity for Inverted Ohm Sign (℧)
What You'll Learn
How to display the Inverted Ohm Sign (℧) in HTML using hexadecimal, decimal, named entity, and CSS escape methods. The symbol ℧ represents conductance (the reciprocal of resistance); the unit is the mho (ohm spelled backwards). SI conductance is usually in siemens (S), but ℧ is still used in some contexts.
This character is U+2127 (INVERTED OHM SIGN) in the Letterlike Symbols block (U+2100–U+214F). Render it with ℧, ℧, ℧, or CSS \2127. For resistance use Ω (U+03A9), not ℧.
⚡ Quick Reference — Inverted Ohm Sign
U+2127Letterlike Symbols
℧Hexadecimal reference
℧Decimal reference
℧Most readable option
Name Value
──────────── ──────────
Unicode U+2127
Hex code ℧
HTML code ℧
Named entity ℧
CSS code \2127
Meaning Conductance (mho unit)
Example G = 5 ℧Complete HTML Example
This example demonstrates the Inverted Ohm Sign symbol (℧) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\2127";
}
</style>
</head>
<body>
<p>Inverted Ohm Sign using Hexadecimal: ℧</p>
<p>Inverted Ohm Sign using Decimal: ℧</p>
<p>Inverted Ohm Sign using Named Entity: ℧</p>
<p id="point">Inverted Ohm Sign using CSS Entity: </p>
</body>
</html>🌐 Browser Support
The Inverted Ohm Sign symbol (℧) is universally supported in all modern browsers:
👀 Live Preview
See the Inverted Ohm Sign (℧) in electrical and scientific contexts:
🧠 How It Works
Hexadecimal Code
℧ uses the Unicode hexadecimal value 2127 to display the Inverted Ohm Sign (℧). The x prefix indicates hexadecimal format.
Decimal HTML Code
℧ uses the decimal Unicode value 8487 to display the same character.
CSS Entity
\2127 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Named Entity
℧ is the standard named HTML entity for the inverted ohm sign (mho)—easy to read and remember in source markup.
Same visual result
All four methods produce ℧ (℧). Unicode U+2127 is in Letterlike Symbols. Next: Inverted Question Mark (U+00BF).
Use Cases
The Inverted Ohm Sign symbol (℧) is commonly used in:
Denote conductance (G = 1/R) in formulas and datasheets.
Circuit diagrams and schematics showing conductance in mhos.
Electronics content, lab reports, and educational material.
Manuals and specs using conductance with ℧ (mho).
STEM courses teaching conductance and inverse ohm.
Readouts and dashboards displaying conductance in mhos.
💡 Best Practices
Do
- Prefer
℧for readable source markup - Label units clearly (e.g. “5 ℧” or “5 mhos”)
- Set
<meta charset="utf-8"> - Use one entity style (named, hex, or decimal) per project
- Use Ω (ohm) for resistance, ℧ (mho) for conductance
Don’t
- Confuse ℧ (conductance, mho) with Ω (resistance, ohm)
- Use CSS
\2127inside HTML text nodes - Mix entity styles randomly in one file
- Assume every font renders Letterlike Symbols (test technical fonts)
- Use ℧ when siemens (S) is required by style guide
Key Takeaways
Four HTML/CSS references all render ℧
℧ ℧ ℧For CSS stylesheets, use \2127 in the content property
Unicode U+2127 — INVERTED OHM SIGN (mho)
Prefer ℧ for readability in HTML source
Previous: Inverted Glottal Stop Next: Inverted Question Mark
❓ Frequently Asked Questions
℧ (hex), ℧ (decimal), ℧ (named), or \2127 in CSS content. All produce ℧.U+2127 (INVERTED OHM SIGN). Letterlike Symbols block (U+2100–U+214F). Hex 2127, decimal 8487. Denotes conductance; unit is the mho.℧, ℧, or ℧) go in markup. The CSS escape \2127 is used in stylesheets, typically on ::before or ::after. Both render ℧.℧ is the named HTML entity for ℧ (mho, conductance). It is part of the HTML5 entity set and is well supported in modern browsers.Explore More HTML Entities!
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