Character
Π
Unicode
U+03A0HTML named
ΠHTML decimal
ΠLaTeX
\PiPi Symbol (π) — Copy & Paste
Grab the pi greek symbol in one click. Pronunciation: pie.
ΠUpper
πLower
ϖVariant pi
Technical reference
Unicode, HTML entities, and LaTeX — tap the icon beside any value.
Character
π
Unicode
U+03C0HTML named
πHTML decimal
πLaTeX
\piCharacter
ϖ
Unicode
U+03D6HTML decimal
ϖLaTeX
\varpiCommon uses in science & math
Circle constant
π ≈ 3.14159… is the ratio of a circle’s circumference to its diameter—the most famous Greek symbol in math.
Product notation
Uppercase Π denotes a product series (analogous to Σ for sums), common in combinatorics and analysis.
How to type Pi
Windows
Grab π here, or Alt+227 on some code pages (unreliable)—prefer Unicode from this page.
macOS
Grab π, or Option+P in many Mac apps inserts π.
Word & Google Docs
Paste π into Docs/Word; use Π for product notation.
Prefer a full walkthrough? Read how to type Greek letters.
Related Greek letters
Pi FAQ
How do I type pi without a Greek keyboard?
Tap the icon next to π above—the simplest method on Windows, Mac, and phones.