Delta symbol (Δ)
U+0394 · GREEK CAPITAL LETTER DELTA · Unicode 1.1 (1993)
How to type Δ
Windows
No Alt code
Δ is not in the Windows code pages 1252 or 437, so it has no Alt code. Use one of the methods below or copy it from this page.
Word and Outlook: Alt + X
0394 Alt+X
Type 0394 and press Alt+X right after it: Word turns the code into Δ. Press Alt+X again to turn it back into the code.
Emoji and symbols panel (Windows 10 and 11)
Win+.
Press Win + full stop (.) to open the panel, go to the Symbols tab (Ω) and pick Δ.
No numeric keypad on your laptop? See the other ways in our Alt codes guide.
Mac
Character Viewer
Ctrl+⌘ Cmd+Space
Press Ctrl+⌘+Space (or the Globe key + E), search for “delta symbol” and click Δ to insert it.
iPhone
Make a shortcut (Text Replacement)
Turn a short word into Δ once and type it in any app:
- Copy Δ from this page.
- Open Settings › General › Keyboard › Text Replacement and tap +.
- Paste Δ as the Phrase and type a Shortcut, for example ;delta.
- Now type ;delta anywhere: the keyboard suggests Δ.
Android
Make a shortcut (Gboard personal dictionary)
Teach your keyboard a short word that turns into Δ:
- Copy Δ from this page.
- Open Gboard settings › Dictionary › Personal dictionary, choose your language and tap +.
- Paste Δ as the word and type a shortcut, for example ;delta.
- Type ;delta in any app and tap Δ in the suggestions.
Linux
Unicode input
Ctrl+Shift+U 0394 Enter
Press Ctrl+Shift+U, type 0394 and press Enter or Space. Works in GTK apps and with IBus (GNOME, Ubuntu, Fedora).
What Δ means and how it is used
Capital delta Δ (U+0394) means 'change in': Δt is a change in time, ΔT a temperature difference. It also names river deltas because of its triangular shape. Unicode has a separate increment sign ∆ (U+2206) that looks the same; a US Mac types that one with Option+J. Lowercase δ is used for small changes and in calculus.
In Unicode, Δ is code point U+0394 with the official name GREEK CAPITAL LETTER DELTA. It belongs to the Greek and Coptic block and arrived with Unicode 1.1 in 1993.
You will find it in our greek, 69 symbols in all, together with α β γ θ λ.
Codes for HTML, CSS and JavaScript
Tap Copy next to the code you need.
| HTML entity | Δ | |
|---|---|---|
| HTML decimal | Δ | |
| HTML hex | Δ | |
| CSS | content: "\0394"; | |
| JavaScript | \u0394 | |
| URL | %CE%94 | |
| UTF-8 bytes | CE 94 | |
| Unicode | U+0394 |
Will it show on my friend's phone?
Very likely yes: Δ dates from Unicode 1.1 (1993), so every current system has a font for it.
Checking your device…
Don't confuse Δ with
These look alike but are different characters. Search, sorting and screen readers treat them differently, so copy the one you mean.
- ΔDelta symbolU+0394 · GREEK CAPITAL LETTER DELTA
- IncrementU+2206 · INCREMENT · Mathematical Operators
- White triangle symbolU+25B3 · WHITE UP-POINTING TRIANGLE · Geometric Shapes
- ߡU+07E1 · NKo
- ᐃU+1403 · Unified Canadian Aboriginal Syllabics
- ⲆU+2C86 · Coptic
- ⵠU+2D60 · Tifinagh
Names in other languages
What Δ is called in the 12 languages of this site (Unicode CLDR and our editors). Tap a name to open that language's page.
| Language | Name |
|---|---|
| English | Delta symbol |
| Português | Símbolo delta |
| Español | Símbolo delta |
| Italiano | Simbolo delta |
| Français | Symbole delta |
| Deutsch | Delta-Zeichen |
| Türkçe | Delta sembolü |
| Bahasa Indonesia | Simbol delta |
| Polski | Symbol delta |
| Русский | Символ дельта |
| 日本語 | デルタ記号 |
| 한국어 | 델타 기호 |
Related symbols
All Greek →Questions people ask
How do I type Δ on a laptop without a numeric keypad?
On Windows press Win + full stop (.) and pick Δ in the Symbols tab, or in Word type 0394 and press Alt+X.
What is the difference between Δ and ∆?
Δ is the delta symbol (U+0394). ∆ is a different character: increment (U+2206, Mathematical Operators block). They can look alike, but computers treat them as different letters, so a search for one will not find the other.
How do I type Δ on an iPhone?
The iPhone keyboard has no key for Δ. Copy it here, then add it in Settings › General › Keyboard › Text Replacement with a shortcut like ;delta.
What is the HTML code for the delta symbol?
Use the entity Δ or the numeric code Δ (hex Δ). In CSS write \0394, in JavaScript \u0394.
Will Δ show on every phone?
Very likely yes: Δ dates from Unicode 1.1 (1993), so every current system has a font for it.