Capital Lambda Symbol (Λ)

Copy and paste the capital lambda Λ with one click

About the Capital Lambda Symbol

Last reviewed on October 31, 2026

Capital Λ is the uppercase lamda, shaped like an inverted V. Physics uses it for the cosmological constant in cosmology. Logic and computing also meet it in lambda calculus, and the Lambda particle has this name.

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

How to Type Capital Lambda on a Keyboard

Windows: Type 039B then press Alt+X in Word; in other apps, copy Λ 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 039B then press Alt+X

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

Frequently Asked Questions

How do I type capital lambda Λ on Windows?

Type 039B then press Alt+X in Word; in other apps, copy Λ from this page and paste it. It has no classic Alt code. You can also copy Λ straight from this page.

How do I type Λ 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 lambda?

It is Unicode code point U+039B, named Greek Capital Letter Lamda. In HTML, use Λ or the numeric reference Λ.