π
Pi
Pi • U+03C0
Click to Copy Symbol
Symbol Description
Pi represents the ratio of a circle's circumference to its diameter, approximately 3.14159.
Primary Uses:
- •Circle calculations
- •Trigonometry
- •Geometry formulas
- •Physics equations
Technical Information
Unicode
U+03C0
HTML Entity
π
HTML Code
π
CSS Code
\03C0
Hex Code
π
Usage Examples
Area = πr²
Circumference = 2πr
π ≈ 3.14159
Input Method Guide
Windows Input Methods
1Alt Code
- 1
Make sure Num Lock is enabled
- 2
Hold down the left Alt key
- 3
Type 0960 on the numeric keypad
💡 Use Alt+0960. If Alt code fails, type 03C0 then press Alt+X in Word, or use Copy & Paste.
- 4
Release Alt key, pi (π) will appear
2Unicode (Alt+X)
- 1
Type 03C0 in the document
- 2
Press Alt + X to convert to the symbol
💡 Alt+X works in Microsoft Word and many Office apps. It is not supported in Notepad and some third-party editors.
3Word Method
- 1
Type 03C0 then press Alt+X in Microsoft Word
- 2
Alternatively, use Insert > Symbol if Alt+X is unavailable