What is the gamma symbol used for?

Lowercase gamma (γ) commonly denotes the Lorentz factor in relativity, a photon in particle physics, an option's gamma in finance, or a shape parameter in a gamma distribution. Uppercase Gamma (Γ) most often names the gamma function in calculus and statistics.

What is the Unicode codepoint for gamma?

Lowercase gamma is U+03B3 (GREEK SMALL LETTER GAMMA) and uppercase Gamma is U+0393 (GREEK CAPITAL LETTER GAMMA), both in the Greek and Coptic block.

What is the HTML entity for gamma?

Use γ for lowercase (γ) and Γ for uppercase (Γ). The numeric entities γ and Γ also work in any HTML document.

What is the LaTeX command for gamma?

Type \gamma in math mode for the lowercase symbol (γ) and \Gamma for the uppercase symbol (Γ). Unlike alpha or beta, uppercase Gamma has its own distinct shape, so LaTeX renders it directly rather than falling back to the Latin letter G.

How do I type the gamma symbol on a keyboard?

On Windows, hold Alt and type 226 on the numeric keypad for uppercase Gamma (a legacy DOS code page shortcut); lowercase gamma has no equivalent, so type 03B3 then press Alt+X in Word, or copy it from this page. On Mac, open the Character Viewer (Control+Command+Space) and search "gamma".

What is the Lorentz factor?

The Lorentz factor, written gamma, is 1 / sqrt(1 - v squared / c squared), where v is velocity and c is the speed of light. It measures how much time dilation and length contraction occur for an object moving at velocity v.

What does gamma mean in finance?

In options trading, gamma measures how fast an option's delta changes as the underlying price moves by one unit. A high gamma means delta shifts quickly, which matters most for options near the money and close to expiration.

Gamma Symbol

Name: Gamma Symbol
Availability: InStock
Author: Nham Vu

Click the gamma symbol (γ) to copy it, or copy its uppercase form, Unicode, HTML entity, and LaTeX formats.

Gamma Symbol

Click the symbol to copy it

Formats

Character γ

Unicode U+03B3

HTML entity γ

HTML decimal γ

LaTeX \gamma

JS / JSON escape γ

Click any row to copy that exact string.

Common Uses

Field	Example	Meaning
Physics		Time dilation and length contraction factor in special relativity.
Radiology		High-energy electromagnetic radiation emitted by radioactive decay.
Math		The gamma function, extending factorials to real and complex numbers.
Finance		An option's gamma, the rate of change of delta per unit move in the underlying.
Statistics		The gamma distribution, defined by a shape and scale parameter.

Lorentz Factor Calculator

Enter velocity as a fraction of the speed of light (v/c, between 0 and 1) to compute gamma.

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Summary

Click the gamma symbol (γ) to copy it, or copy its uppercase form, Unicode, HTML entity, and LaTeX formats.

How it works

Click the large gamma symbol to copy the lowercase letter to your clipboard.
Switch between lowercase (γ) and uppercase (Γ) with the toggle above it.
Click any row in the formats list to copy that exact string: Unicode, HTML entity, or LaTeX.
Enter a velocity as a fraction of the speed of light in the calculator to compute the Lorentz factor.

Use cases

Write the Lorentz factor in special relativity, such as gamma in E = gamma * m * c squared.
Reference gamma radiation or a gamma ray in a physics or radiology note.
Insert the gamma function into a math paper, such as Gamma(n) = (n-1)! for positive integers.
Label an option's gamma, the second-order sensitivity of delta to the underlying price, in a trading note.
Set the shape parameter of a gamma distribution in a statistics or reliability model.
Add the correct HTML entity or LaTeX command instead of typing a lookalike character.

Frequently Asked Questions

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