Greek Small Letter Phi

A symbol from the Math Symbols collection. Click the symbol or the button below to copy.

Symbol: φ
Unicode: U+03C6
HTML entity: φ
Category: Math Symbols

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Download Greek Small Letter Phi as a vector SVG or a raster PNG.

PNG size

SVG uses the system font stack — open in any vector editor and convert to outlines if needed. PNGs have a transparent background.

51 of 58 in the math symbols collection

About the greek small letter phi symbol

Greek Small Letter Phi, denoted by the symbol φ, is a lowercase character belonging to the Greek script. It is generally pronounced as a soft f sound, though in classical contexts it represented an aspirated p. While it originates from the Greek and Coptic block, its appearance varies slightly between a loopy, open stroke and a stroked circle, depending on the typeface or mathematical notation style employed.

This character is primarily categorized as a math symbol due to its technical utility. It serves as the standard representation for the Golden Ratio in geometry and art, illustrating perfect proportions. In physics, it frequently denotes magnetic flux or the phase of a wave. Engineers also utilize it to indicate the diameter of a circular object or to represent various angles and functions within complex calculations.

How to type Greek Small Letter Phi

Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.

Windows

2 options

In Word / Outlook: type 03C6 then press Alt + X.
Anywhere: press Win + . to open the emoji & symbol picker, then search.

macOS

2 options

Enable “Unicode Hex Input” in System Settings → Keyboard, then hold Option and type 03C6.
Or: Control + Command + Space opens the Character Viewer — search by name.