Greek Letter Alt Codes in Word: 32 Easy Codes (Free PDF)

Greek letter alt codes let you type α, β, π, Σ and Ω in Word for maths, science and statistics without opening the Symbol dialog. This guide lists 25 Greek letters and 7 extra maths signs with the code for each one; for Greek letters inside a full formula, the equation editor is quicker — see how to insert equations in Word.

In this guide, you’ll learn the Alt + X code for each Greek letter, which Alt codes only work on PCs set to US English, and how to type Greek inside equations. Everything here works in Word for Windows in Microsoft 365, Word 2021, 2019 and 2016. Every code in this guide was typed and checked in Word for Microsoft 365.

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Download the Free PDF Cheat Sheet

All 32 Greek letter alt codes in this guide fit on a free one-page A4 printable PDF. Print it for maths and science lessons, or keep it open while you write.

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What This Greek Letters Cheat Sheet Covers

The sheet covers the Greek letters used most in maths, physics, chemistry and statistics, in lower case and capitals, plus a few maths signs from the old DOS character set. Every symbol has an Alt + X code, which works on any PC. 17 of them also have an older Alt code that only works on PCs set to US English, so the sheet marks those codes US, and 2 have an Alt code that works everywhere.

It is most useful when you need to:

• Label angles (θ), wavelengths (λ) and resistance (Ω) in science work.
• Write statistics such as σ for standard deviation and Σ for a total.
• Add π, α or β to maths worksheets and exam papers.
• Name variables in formulas without opening the Symbol dialog.

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How to Use Alt + X in Word

Alt + X is a Word feature that turns a Unicode code into its symbol. It works for every symbol on the sheet, including the ones with no Alt code, and it does not need a numeric keypad, so it is the method to use on a laptop.

Steps:

1. Type the code from the Alt + X code column, for example 03B1.
2. Leave the cursor straight after the code.
3. Press Alt + X. The code changes to α.

👉 Press Alt + X again straight after the symbol to turn it back into its code. If the code sits right after other letters or numbers, add a space first, or Word may read them as part of the code.

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How to Type an Alt Code in Word

An Alt code is a number you type on the numeric keypad while holding Alt. Word turns the number into the symbol the moment you let go. Type the digits exactly as shown, including any leading zero: Alt + 0128 gives €, while the same digits without the zero give a different character.

Steps:

1. Click where you want the symbol.
2. Make sure Num Lock is on (the keypad light is lit).
3. Hold down Alt.
4. Type the code on the numeric keypad, not the number row above the letters.
5. Let go of Alt. The symbol appears.

👉 The symbol takes the font of the text around it, so it matches your document.

👉 Codes marked US English PCs only come from the older DOS character set. They type the symbol on a PC set to US English, but a different character on UK and most European PCs. If you are not sure, use the Alt + X code: it works on every PC.

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Greek Lower Case Alt Codes

Symbol	Name	Alt code	Alt + X code
α	Alpha	Alt + 224 (US English PCs only)	03B1 then Alt + X
β	Beta	—	03B2 then Alt + X
γ	Gamma	—	03B3 then Alt + X
δ	Delta	Alt + 235 (US English PCs only)	03B4 then Alt + X
ε	Epsilon	Alt + 238 (US English PCs only)	03B5 then Alt + X
η	Eta	—	03B7 then Alt + X
θ	Theta	—	03B8 then Alt + X
κ	Kappa	—	03BA then Alt + X
λ	Lambda	—	03BB then Alt + X
μ	Mu	—	03BC then Alt + X
ν	Nu	—	03BD then Alt + X
π	Pi	Alt + 227 (US English PCs only)	03C0 then Alt + X
ρ	Rho	—	03C1 then Alt + X
σ	Sigma	Alt + 229 (US English PCs only)	03C3 then Alt + X
τ	Tau	Alt + 231 (US English PCs only)	03C4 then Alt + X
φ	Phi	Alt + 237 (US English PCs only)	03C6 then Alt + X
ω	Omega	—	03C9 then Alt + X

👉 μ (03BC) is the Greek letter mu. The micro sign µ on the maths sheet (Alt + 0181) looks the same but is a different character: use μ in Greek text and µ for units such as µm.

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Greek Capital Letter Alt Codes

Symbol	Name	Alt code	Alt + X code
Γ	Gamma	Alt + 226 (US English PCs only)	0393 then Alt + X
Δ	Delta	—	0394 then Alt + X
Θ	Theta	Alt + 233 (US English PCs only)	0398 then Alt + X
Λ	Lambda	—	039B then Alt + X
Σ	Sigma	Alt + 228 (US English PCs only)	03A3 then Alt + X
Φ	Phi	Alt + 232 (US English PCs only)	03A6 then Alt + X
Ψ	Psi	—	03A8 then Alt + X
Ω	Omega	Alt + 234 (US English PCs only)	03A9 then Alt + X

👉 Σ (03A3) is the capital letter sigma. For the summation sign in maths, the math symbol alt codes sheet lists ∑ (2211), which is drawn larger.

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More Maths Sign Alt Codes

Symbol	Name	Alt code	Alt + X code
‰	Per mille	Alt + 0137	2030 then Alt + X
¬	Not sign	Alt + 0172	00AC then Alt + X
⌐	Reversed not sign	Alt + 169 (US English PCs only)	2310 then Alt + X
ⁿ	Superscript n	Alt + 252 (US English PCs only)	207F then Alt + X
∙	Bullet operator	Alt + 249 (US English PCs only)	2219 then Alt + X
⌠	Top half integral	Alt + 244 (US English PCs only)	2320 then Alt + X
⌡	Bottom half integral	Alt + 245 (US English PCs only)	2321 then Alt + X

👉 ‰ (Alt + 0137) is the per mille sign, used for parts per thousand, such as a 5‰ salt solution.

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Common Problems and Fixes

• Nothing happens, or a different character appears: turn on Num Lock and use the numeric keypad. The number row above the letters does not work for Alt codes.
• No numeric keypad: use the Alt + X code instead. It needs no keypad.
• Alt + X changes the wrong text: put a space before the code so Word does not include the letters in front of it.
• An empty box appears: the font has no picture for that symbol. Select it and pick a fuller font such as Aptos, Segoe UI or Arial — see how to change the font in Word.
• A code marked US English PCs only types a different character: your PC uses the UK or European version of the old character set. Use the Alt + X code instead.

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Pro Tips for Greek Letter Alt Codes

• In the equation editor (Alt + =), type \alpha, \beta or \Omega and press Space to get α, β and Ω.
• Greek letters take the font of the text around them; Cambria Math and Segoe UI draw them most clearly.
• Use the Greek capital Δ (0394) for a letter and the increment sign ∆ (2206) for “change in”, as on the maths sheet.
• Keep this sheet with the math symbol alt codes for complete maths and science notes.

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FAQs

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Conclusion

Greek letter alt codes put α to Ω one keystroke away. Use the Alt + X code on any PC, and the US Alt codes only on a PC set to US English.

Download the free PDF, and for ±, √ and ≤, the companion guide to math symbol alt codes in Word works the same way. All eight sheets also come together in the free Word alt codes bundle.

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Related Tutorials

• Math Symbol Alt Codes in Word
• How to Insert Equations in Word
• Equation Shortcuts in Word