Returns the value of the mathematical constant Pi, accurate to 15 digits.
This function works the same in Google Sheets as it does in Excel — same syntax and arguments.
PI()The PI function returns the value of the constant 3.14159265358979. It does not require any arguments and is commonly used in geometric calculations involving circles or spheres.
=PI()Result: 3.14159265358979
Returns the value of Pi.
=PI()*5^2Result: 78.5398163397448
Calculates the area of a circle with a radius of 5 using the formula πr².
No, the PI function does not accept any arguments and must be followed by empty parentheses.