Micro Sign Symbol
The µ micro sign (Unicode U+00B5) is commonly used as the SI prefix for micro-.
U+00B5
The “µ” symbol is known as the micro sign. It’s a Unicode character with a specific code point (U+00B5) and standard ways to type it in HTML, CSS, and JavaScript.
Micro Sign Symbol Meaning
The symbol “µ” is the micro sign, represented in Unicode as U+00B5. In everyday writing and technical text, it’s most often used with measurement units to indicate the SI prefix “micro-,” meaning one millionth (10⁻⁶). For example, it appears in contexts like micrometers, microseconds, and concentrations. Because it has its own Unicode identity, it’s preferred over similar-looking characters when you need consistent, standards-friendly text. Use the provided HTML entity and escapes if you’re generating the character programmatically or embedding it in code.
Common uses
- •Writing SI units with the micro- prefix (e.g., µm, µs, µg)
- •Labeling measurements on product specs and technical documents
- •Creating charts and axis labels for scientific or engineering data
- •Designing UI text for units in dashboards and forms
- •Typing or rendering micro-related terms in web and app content
Examples
µ Micro sign
- µLength: 12 µm
- µTime: 5 µs
- µConcentration: 3 µg/L
- µVoltage: 20 µV
- µCurrent: 0.8 µA
Variations
Ready to copy
Technical codes
| Unicode | U+00B5 | |
| HTML Entity | µ | |
| HTML Code | µ | |
| CSS | \00B5 |
FAQ
What does the Micro Sign symbol mean?
The symbol “µ” is the micro sign, represented in Unicode as U+00B5. In everyday writing and technical text, it’s most often used with measurement units to indicate the SI prefix “micro-,” meaning one millionth (10⁻⁶). For example, it appears in contexts like micrometers, microseconds, and concentrations. Because it has its own Unicode identity, it’s preferred over similar-looking characters when you need consistent, standards-friendly text. Use the provided HTML entity and escapes if you’re generating the character programmatically or embedding it in code.
Is this character the same as the Greek letter mu (μ)?
No. This page is for the micro sign “µ” with Unicode code point U+00B5. The Greek letter mu is a different character (Unicode U+03BC).
How do I copy the micro sign µ into my text?
Copy the character “µ” from this page and paste it wherever you need it. If you’re generating text in code, use the provided HTML/CSS/JavaScript escapes.
What are the Unicode and HTML references for µ?
Unicode code point: U+00B5. HTML entity: µ.
How can I insert µ using CSS or JavaScript?
Use CSS escape \\00B5, or JavaScript escape \\u{00B5}.