Question 1

What is the difference between perimeter and circumference?

Accepted Answer

In geometry, they are effectively the same; however, 'perimeter' is a general term for any shape, while 'circumference' specifically describes the perimeter of a circle.

Question 2

Do I need to know Pi to use this tool?

Accepted Answer

No, our calculator handles the value of Pi automatically for high-precision results.

Circle Perimeter