Capital Delta Symbol (Δ)
Copy the Capital Delta symbol Δ to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.
What does Δ mean?
Capital Delta means a finite change or difference in a quantity — Δx is a change in position, Δt a change in time, ΔE a change in energy. It also denotes the discriminant of a quadratic and, in some fields, the Laplace operator. Δ is the capital form of Delta, letter 4 of 24 in the Greek alphabet (pronounced DEL-ta). Its lowercase counterpart is δ. In science and maths it is used for: Change or difference (Δ), Dirac/Kronecker delta (δ).
Codes and properties
| Character | Δ |
|---|---|
| Unicode name | GREEK CAPITAL LETTER DELTA |
| Code point | U+0394 |
| Decimal | 916 |
| Unicode block | Greek and Coptic |
| HTML entity | Δ · Δ · Δ |
| CSS | \0394 |
| JavaScript / JSON | \u0394 |
| Python | \u0394 or \N{GREEK CAPITAL LETTER DELTA} |
| UTF-8 bytes | CE 94 |
| LaTeX | \Delta |
How to type Δ
- Copy & paste: press the Copy button above, then paste Δ anywhere — Word, Google Docs, email, chat or code.
- Windows (Word, WordPad, Outlook): type
0394then press Alt+X. In any app, Win+. opens the symbol panel. - Mac: switch to the Unicode Hex Input keyboard, hold Option and type
0394; or press Ctrl+Cmd+Space and search “greek capital letter delta”. - Linux (GTK/IBus): press Ctrl+Shift+U, type
0394, then Space. - HTML:
Δrenders as Δ. - LaTeX:
\Deltain math mode (amssymb package for some symbols).
Frequently asked questions
What does Δ mean?
‘Change in’ — the difference between a final and initial value, e.g. Δx = x₂ − x₁.
Is Δ used in chemistry?
Yes — Δ over a reaction arrow indicates that heat is applied.
How do I type Δ on Windows?
In Microsoft Word type 0394 and press Alt+X. In any app press Win+. to open the symbol panel, or copy Δ from this page.
What is the HTML code for Δ?
Use Δ or Δ (hex) or Δ (decimal).
What is the LaTeX command for Δ?
Use \Delta in math mode.