What is the Unicode codepoint for lambda?

Uppercase lambda (Λ) is U+039B and lowercase lambda (λ) is U+03BB, both in the Greek and Coptic Unicode block.

What is the HTML entity for lambda?

Use Λ for uppercase (Λ) and λ for lowercase (λ). The numeric entities Λ and λ also work.

What is the LaTeX command for lambda?

Type \Lambda for the uppercase symbol (Λ) and \lambda for the lowercase symbol (λ) in math mode.

How do I type lambda on a keyboard?

On Windows, hold Alt and type 955 on the numeric keypad for lowercase lambda. On Mac, no default shortcut exists, so use the Character Viewer (Control+Command+Space) and search "lambda". This page's copy button works on any device without a shortcut.

What does lambda mean in math?

Lowercase lambda (λ) commonly denotes an eigenvalue in linear algebra, or the rate parameter of a Poisson or exponential distribution in statistics. Uppercase lambda (Λ) is used less often, sometimes for a set of parameters or a diagonal matrix of eigenvalues.

What does lambda mean in physics?

Lowercase lambda (λ) is the standard symbol for wavelength, the distance between two peaks of a wave. It relates to frequency and speed through λ = c / f, where c is the wave speed.

What does lambda mean in programming?

A "lambda" is an anonymous function, a small function defined without a name, common in JavaScript, Python, and AWS Lambda cloud functions. The term comes from lambda calculus, a formal system for expressing computation.

Lambda Symbol

Name: Lambda Symbol
Availability: InStock
Author: Nham Vu

Copy the uppercase or lowercase lambda symbol (Λ λ) and find its Unicode codepoint, HTML entity, and LaTeX command.

Lambda Symbol

Click the symbol to copy it

Formats

Character Λ

Unicode U+039B

HTML entity Λ

HTML decimal Λ

LaTeX \Lambda

JS / JSON escape Λ

Click any row to copy that exact string.

Common Uses

Field	Example	Meaning
Linear algebra		Eigenvalue, the scalar that scales an eigenvector under a matrix.
Physics		Wavelength, the distance between two peaks of a wave.
Statistics		Rate parameter of a Poisson or exponential distribution.
Programming		An anonymous function, defined without a name.
Finance		Option lambda, the percentage change in option value per 1% move in the underlying.

Wavelength calculator

Enter a frequency to compute the wavelength (λ = c / f) using the speed of light in a vacuum.

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Summary

Copy the uppercase or lowercase lambda symbol (Λ λ) and find its Unicode codepoint, HTML entity, and LaTeX command.

How it works

Click the large lambda symbol to copy it to your clipboard.
Switch between uppercase (Λ) and lowercase (λ) with the toggle.
Click any row in the formats list to copy that exact string: Unicode, HTML entity, or LaTeX.
Paste the symbol anywhere: documents, spreadsheets, code, or chat.

Use cases

Write an eigenvalue in a linear algebra problem, such as Av = λv.
Label a wavelength in a physics formula, such as λ = c / f.
Reference the rate parameter of a Poisson or exponential distribution in statistics.
Type an anonymous function in a functional programming or lambda calculus paper.
Copy the correct LaTeX command (\Lambda or \lambda) for a paper or lab report instead of typing it from memory.
Insert lambda into a chemistry or engineering note without a special keyboard layout.

Frequently Asked Questions

Last updated: 2026-07-22 · Reviewed by Nham Vu