Measured by (≞) is the Mathematical Operators character at Unicode U+225EMEASURED BY). It is a relation symbol used in mathematics, geometry, and engineering notation.
Remember
Character ≞
Unicode U+225E
Hex entity ≞
Decimal ≞
CSS escape \225E
Named entity (none)
Hex, decimal, CSS, and a typed character all produce the same glyph: ≞. Prefer typing ≞ in UTF-8 HTML when you can; use entities when encoding must be explicit.
Using Hex Code: ≞
Using HTML Code: ≞
Using CSS Entity: ≞
Notation: ∠ABC ≞ 45°
How It Works
1. Hex:U+225E → ≞ in HTML. The browser turns it into ≞.
2. Decimal: same code point as 8798 → ≞. Same result as hex.
3. CSS: use \225E in content (not an HTML entity). #point::after appends that ≞ after the paragraph text.
4. Typed ≞: best for normal UTF-8 text in geometry or engineering notes.
Pitfalls & Tips
Common mistakes when working with measured by.
Named?
No named entity
HTML5 does not define a named entity for U+225E. Use numeric forms.
Related
Not measured angle
∡ (∡) is U+2221. Measured by is only U+225E.
Font
Glyph support varies
Some fonts miss Mathematical Operators glyphs — test with a Unicode-capable math or system font.
CSS vs HTML
Do not mix escapes
\225E belongs in CSS. ≞ / ≞ belong in HTML.
Encoding
Declare UTF-8
If you type ≞ directly, keep <meta charset="UTF-8"> so the file is not misread.
Semicolon
End references
Always finish with ; — write ≞, not ≞.
Compatibility
Browser Support
Measured by (U+225E) and its numeric entity forms (≞, ≞, CSS \\225E) are supported in all mainstream browsers with a Unicode-capable font.
✓ Universal support
Measured By (≞)
Type ≞, or encode with hex, decimal, or CSS escape — same glyph everywhere fonts support it.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerIE 9+
Yes*
U+225E / entitiesFull support
Bottom line: Type ≞ for normal UTF-8 text. Prefer ≞ or ≞ when encoding must be explicit, and \\225E only inside CSS content.
Remember
Key Takeaways
Unicode: measured by is U+225E (decimal 8798).
HTML: use ≞ or ≞ when you need an entity.
CSS: use \225E inside content for generated text.
Related: measured angle is ∡ (∡) — a different character.
One line:U+225E → type ≞, or encode as ≞ / ≞ / CSS \225E.
Frequently Asked Questions
Use ≞ (hex), ≞ (decimal), or the CSS escape \225E in the content property. All render ≞. There is no named HTML entity for U+225E.
U+225E (MEASURED BY). Hex 225E, decimal 8798. It belongs to the Mathematical Operators block.
No. U+225E has no named HTML entity. Use numeric references like ≞ or ≞.
Use it in mathematics, geometry, and engineering notation when a value is expressed as measured by another quantity or instrument.
HTML entities (≞ or ≞) go in markup. The CSS escape \225E is used in stylesheets (usually in the content property of ::before/::after). Both render the same measured-by glyph.
No. Measured by is U+225E. Measured angle is ∡ (∡, U+2221) — a different character.
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Did you know?
Measured by is Unicode U+225E (decimal 8798) — MEASURED BY in Mathematical Operators. HTML5 has no named entity for it — use ≞ or ≞. Related: measured angle ∡ (∡, U+2221).
