Greek Small Letter Phi

Part of Greek Letters

On Windows, hold Alt and type 237 on the numeric keypad to insert greek small letter phi.

Alt code
Alt+237
HTML entity
φ
Unicode
U+03C6

About this symbol

Phi is the usual name for the golden ratio, approximately 1.618, admired in art and architecture for its proportions. The American mathematician Mark Barr is said to have chosen the letter by 1910; mathematicians also wrote it with τ, tau, from the Greek for a cut.

Unicode facts

Official name
GREEK SMALL LETTER PHI
Type
Lowercase letter
Unicode block
Greek and Coptic
Unicode group
Letters
Added in
Unicode 1.1 (1993)
Capital form
Φ Greek Capital Letter Phi U+03A6
Unicode notes
  • The ordinary Greek letter, showing considerable glyph variation
  • In mathematical contexts, the loopy glyph is preferred, to contrast with 03D5
Related
ɸ Latin Small Letter Phi U+0278
ϕ Greek Phi Symbol U+03D5

Click the symbol or any value at the top of the page to copy it. See the full Greek Letters chart for related characters.

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