Omega Symbol
Copy the uppercase or lowercase omega symbol (Ω ω) and find its Unicode codepoint, HTML entity, and LaTeX command.
Omega Symbol
Click the symbol to copy it
Formats
Character
Ω
Unicode
U+03A9
HTML entity
Ω
HTML decimal
Ω
LaTeX
\Omega
JS / JSON escape
Ω
Click any row to copy that exact string.
Common Uses
| Field | Example | Meaning |
|---|---|---|
| Electronics | Electrical resistance in ohms, the SI unit named after Georg Ohm. | |
| Physics | Angular frequency, in radians per second. | |
| Geometry | Solid angle in steradians, such as a full sphere seen from its center. | |
| Statistics | The set of all possible outcomes of a random experiment. | |
| Symbolism | The first and last Greek letters, used to mean the beginning and the end. |
Build a resistance label
Enter a number to build a ready-to-paste resistance value, like 220 Ω on a schematic.
220 Ω
Keyboard input methods
| Platform | Shortcut |
|---|---|
| macOS | Option+Z types uppercase Ω on a US keyboard layout. For lowercase ω, open Character Viewer (Control+Command+Space) and search "omega". |
| Windows (Word/Office) | Type 03A9 (or 03C9 for lowercase), then press Alt+X to convert the code into the symbol. |
| Windows (any app) | Open Character Map (charmap.exe), search "omega", then copy and paste. |
| Linux (IBus) | Press Ctrl+Shift+U, type 3a9 (or 3c9 for lowercase), then press Enter or Space. |
Copied!
Summary
Copy the uppercase or lowercase omega symbol (Ω ω) and find its Unicode codepoint, HTML entity, and LaTeX command.
How it works
- Click the large omega symbol to copy it to your clipboard.
- Switch between uppercase (Ω) and lowercase (ω) with the toggle.
- Click any row in the formats list to copy that exact string: Unicode, HTML entity, or LaTeX.
- Check the keyboard section for a shortcut on your operating system.
- Paste the symbol anywhere: documents, spreadsheets, code, or chat.
Use cases
- Label electrical resistance in ohms, such as 4.7 kΩ on a schematic or datasheet.
- Write angular frequency in a physics formula, such as ω = 2πf.
- Reference a solid angle in steradians, such as Ω = 4π for a full sphere.
- Mark a sample space in probability and statistics notation.
- Type Greek letters in an engineering or lab report without a special keyboard layout.
- Copy the correct LaTeX command (\Omega or \omega) for a paper instead of typing it from memory.
- Insert the "last" or "final" symbolism of omega into a title or design, as in Alpha and Omega.
Frequently Asked Questions
Last updated: 2026-07-22 ·
Reviewed by Nham Vu