Greek Symbol
Greek letter

Phi Symbol (φ) — Copy & Paste

Grab the phi greek symbol in one click. Pronunciation: fy / fee.

ΦUpper
φLower
ϕPhi symbol (math form)
Reference

Technical reference

Unicode, HTML entities, and LaTeX — tap the icon beside any value.

Uppercase Phi

Character
Φ
Unicode
U+03A6
HTML named
Φ
HTML decimal
Φ
LaTeX
\Phi

Lowercase Phi

Character
φ
Unicode
U+03C6
HTML named
φ
HTML decimal
φ
LaTeX
\phi

Phi symbol (math form)

Character
ϕ
Unicode
U+03D5
HTML decimal
ϕ
LaTeX
\varphi
Context

Common uses in science & math

Phase & golden ratio

Signal processing uses φ for phase; φ (or Φ) also denotes the golden ratio (1+√5)/2 in many texts.

Electric potential & work function

Physics uses φ/Φ for scalar potential, magnetic flux (Φ), and work function.

Input

How to type Phi

Windows

Grab φ or ϕ explicitly—don’t substitute o with a slash.

macOS

Use this page for the exact glyph you need.

Word & Google Docs

Paste φ into phase equations and golden-ratio notes.

Prefer a full walkthrough? Read how to type Greek letters.

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Phi FAQ

φ vs ϕ — which is correct?

Both are used. φ (U+03C6) is the standard Greek letter; ϕ (U+03D5) is a common math “symbol” form. Match your field’s convention.