Capital Delta Symbol (Δ)

Copy and paste the capital delta Δ with one click

Unicode Character

Unicode Hex

U+0394

HTML Entity

Decimal Code

916

About the Capital Delta Symbol

Last reviewed on October 31, 2026

Capital Δ means change or difference in science and engineering, as in Δt for elapsed time and ΔT for a temperature shift. In algebra, Δ names the discriminant of a quadratic. Geometry notes also use it for a triangle.

Its official Unicode name is Greek Capital Letter Delta. Browse the Greek Letters page for related characters.

How to Type Capital Delta on a Keyboard

Windows: Type 0394 then press Alt+X in Word; in other apps, copy Δ from this page and paste it. It has no classic Alt code

Mac: Press Ctrl+Cmd+Space to open the Character Viewer, then search for the symbol by name

Microsoft Word: Type 0394 then press Alt+X

Phone & tablet: Copying Δ from this page is fastest — see our mobile typing guide

Capital Delta Code for HTML, CSS & JavaScript

HTML: Δ

CSS: content: '\0394';

JavaScript: '\u0394'

Unicode: U+0394

Frequently Asked Questions

How do I type capital delta Δ on Windows?

Type 0394 then press Alt+X in Word; in other apps, copy Δ from this page and paste it. It has no classic Alt code. You can also copy Δ straight from this page.

How do I type Δ on a Mac?

Press Ctrl+Cmd+Space to open the Character Viewer, then search for the symbol by name.

What is the Unicode and HTML code for capital delta?

It is Unicode code point U+0394, named Greek Capital Letter Delta. In HTML, use Δ or the numeric reference Δ.