Short answer: Tap any letter below to copy it. To type Greek: on Windows hold Alt and type the letter’s code on the numeric keypad (Alt + 945 = α), or add the Greek keyboard; on Mac add the Greek input source or use the Character Viewer; in HTML use α … ω; in LaTeX use \alpha … \omega.
Need the Windows, Mac, Word and HTML method for one specific letter? The Alt Code Finder has every Greek letter by name.
The Greek alphabet has 24 letters, each with an uppercase and lowercase form, and it’s everywhere in maths, science, engineering, statistics and the classics — from π and Σ to Δ and Ω. Here’s the full set, then exactly how to type them on every platform.
The full Greek alphabet
| Name | Upper | Lower | Alt (upper) | Alt (lower) | HTML | LaTeX |
|---|---|---|---|---|---|---|
| Alpha | Α | α | 913 | 945 | α | \alpha |
| Beta | Β | β | 914 | 946 | β | \beta |
| Gamma | Γ | γ | 915 | 947 | γ | \gamma |
| Delta | Δ | δ | 916 | 948 | δ | \delta |
| Epsilon | Ε | ε | 917 | 949 | ε | \epsilon |
| Zeta | Ζ | ζ | 918 | 950 | ζ | \zeta |
| Eta | Η | η | 919 | 951 | η | \eta |
| Theta | Θ | θ | 920 | 952 | θ | \theta |
| Iota | Ι | ι | 921 | 953 | ι | \iota |
| Kappa | Κ | κ | 922 | 954 | κ | \kappa |
| Lambda | Λ | λ | 923 | 955 | λ | \lambda |
| Mu | Μ | μ | 924 | 956 | μ | \mu |
| Nu | Ν | ν | 925 | 957 | ν | \nu |
| Xi | Ξ | ξ | 926 | 958 | ξ | \xi |
| Omicron | Ο | ο | 927 | 959 | ο | o |
| Pi | Π | π | 928 | 960 | π | \pi |
| Rho | Ρ | ρ | 929 | 961 | ρ | \rho |
| Sigma | Σ | σ / ς | 931 | 963 / 962 | σ | \sigma |
| Tau | Τ | τ | 932 | 964 | τ | \tau |
| Upsilon | Υ | υ | 933 | 965 | υ | \upsilon |
| Phi | Φ | φ | 934 | 966 | φ | \phi |
| Chi | Χ | χ | 935 | 967 | χ | \chi |
| Psi | Ψ | ψ | 936 | 968 | ψ | \psi |
| Omega | Ω | ω | 937 | 969 | ω | \omega |
Two notes: sigma has a second lowercase form, ς (final sigma, Alt + 962), used at the end of a word; and for HTML/LaTeX, uppercase uses the capitalised form — Α / \Gamma, \Delta, \Theta, \Lambda, \Xi, \Pi, \Sigma, \Phi, \Psi, \Omega (the other capitals are just the Latin letter).
Type Greek letters on Windows
Two good options:
- Alt codes (occasional use). Hold Alt, type the decimal code from the table on the numeric keypad (Num Lock on), release — Alt + 945 = α, Alt + 937 = Ω. These need a numpad and a Unicode-aware app (Word, browsers, email).
- The Greek keyboard (lots of Greek). Settings → Time & language → Language & region → add Greek, then switch with Windows + Space (or Alt + Shift). Keys map by sound — A→α, B→β — and Shift gives capitals.
For a one-off, the Win + . emoji/symbol picker and Character Map also work.
Type Greek letters on Mac
Macs have no Alt codes. Best options:
- Greek input source (lots of Greek). System Settings → Keyboard → Text Input → Input Sources → + → Greek. Switch from the menu bar or the Globe key; keys map by sound (a→α, b→β).
- Character Viewer (occasional). Press Control + Command + Space, search the letter’s name, double-click to insert.
- Handy one-offs on the US layout: Option + Z = Ω, Option + P = π, Option + M = µ. For the rest, use the input source or Viewer.
Type Greek letters in Microsoft Word
- Hex + Alt + X: type the hex code point and press Alt + X —
03B1then Alt + X becomes α,0394then Alt + X becomes Δ. - Equation mode: press Alt + = for an equation box, then type
\alpha,\beta,\Omegafollowed by Space — Word formats them as proper maths symbols. (Great for formulas, less so for body text.) - Insert → Symbol → More Symbols with a font like Cambria Math also lists the full Greek set.
Type Greek letters in Google Docs
- Insert → Special characters, then search a name like “greek small letter alpha” and click to insert.
- Or Insert → Equation and type
\alpha,\beta,\Deltafollowed by Space.
Greek letters in HTML & CSS
In HTML, every letter has a named entity plus numeric fallbacks — all three render identically:
- Named:
α→ α,Ω→ Ω - Decimal:
α→ α - Hex:
α→ α
In CSS content (for pseudo-elements), use the escaped hex code point: content: "\03B1"; for α. Numeric references are the safest for less common letters.
Greek letters in LaTeX
In math mode ($ … $ or \( … \)), use \alpha, \beta, \gamma, … For uppercase, capitalise the command where the letter differs from Latin — \Gamma \Delta \Theta \Lambda \Xi \Pi \Sigma \Upsilon \Phi \Psi \Omega; the remaining uppercase letters are typed as ordinary Latin capitals (A, B, E, Z, H, I, K, M, N, O, P, T, X). Variant forms like \varepsilon (ε) and \varphi (φ) are also available.
Type Greek letters on Linux
- Ctrl + Shift + U, then the hex code (
3b1) and Enter → α. - Or add the Greek layout (Settings → Keyboard) and toggle with Super + Space.
On a phone
Long-press isn’t enough for Greek — add a Greek keyboard (iPhone: Settings → General → Keyboard → Keyboards → Add; Android: Gboard → Languages → add Greek) and switch with the globe key, or simply copy the letters from the tool above.
What the letters are used for
A few you’ll meet constantly: π (pi, circles), Δ / δ (delta — change, difference), Σ / σ (sigma — sum, standard deviation), Ω / ω (omega — ohms, angular frequency), θ (theta — angles), λ (lambda — wavelength, eigenvalues), μ (mu — micro, mean), φ (phi — golden ratio), α β γ (alpha, beta, gamma — first variables, particle types). Each of the most common has its own in-depth guide linked from the Greek hub.
Troubleshooting
| Problem | Fix |
|---|---|
| Alt code gives the wrong character | Use the numeric keypad with Num Lock on, in a Unicode-aware app (Word/browser); basic editors may not support codes ≥256. |
| Letter shows as a box ▯ | Your font lacks the glyph — switch to a Unicode font like Segoe UI, Arial or Cambria Math. See symbol showing as a box. |
| Need lots of Greek | Add the Greek keyboard layout instead of typing codes one by one. |
| Final vs normal sigma | Use ς (Alt + 962) only at the end of a word; σ elsewhere. |
| Copy/paste loses the letter | The target field blocks non-Latin text — try a plain-text paste (Ctrl + Shift + V). |
Recap
- Occasional letter → copy it above, or Alt code / Character Viewer.
- Lots of Greek → add the Greek keyboard layout (Windows/Mac/Linux/phone).
- Word → hex + Alt + X, or
\alphain equation mode. - Web →
α…ω. LaTeX →\alpha…\Omega.
Frequently asked questions
How many letters are in the Greek alphabet?
The Greek alphabet has 24 letters, from alpha (α) to omega (ω), each with an uppercase and a lowercase form. Lowercase sigma has two shapes — σ in general and ς at the end of a word — so you’ll sometimes see 25 lowercase forms listed.
How do I type Greek letters on Windows?
For the odd letter, hold Alt and type the code on the numeric keypad (Alt + 945 = α, Alt + 937 = Ω) in a Unicode-aware app. For lots of Greek, add the Greek keyboard layout under Settings → Time & language and switch with Windows + Space, where keys map by sound.
How do I type Greek letters on a Mac?
Macs have no Alt codes. Add the Greek input source under System Settings → Keyboard → Input Sources and switch with the Globe key, or open the Character Viewer with Control + Command + Space and search the letter’s name. A few have Option shortcuts too — Option + Z is Ω, Option + P is π.
How do I write Greek letters in HTML?
Use named entities like α for α and Ω for Ω, or numeric references such as α (decimal) or α (hex). All render the same; numeric references are the safest for less common letters.
How do I type Greek letters in Word or LaTeX?
In Word, type the hex code and press Alt + X (03B1 → α), or press Alt + = and type \alpha in an equation. In LaTeX math mode, use \alpha, \beta, and capitalise for uppercase where it differs — \Delta, \Sigma, \Omega.
Why does a Greek letter show as a box?
The character is valid Unicode; your font simply has no glyph for it, so it shows a “tofu” box. Switch to a font that includes Greek, such as Segoe UI, Arial or Cambria Math, and it will appear.
Written by Igor R.. Tested on Windows 11, macOS, Word, Google Docs and LaTeX. Symbol code points follow the Unicode Standard. Last updated July 2026.