Monday, November 15, 2010

Circle equations formulas and calculator

If you have one unknown variable:
  • circumference (c)
  • area (A)
  • radius  (r)
  • or diameter of the circle (d)
just type it in the calculator below. Other values will be calculated quickly using the following formulas:

where π is calculated to 10 significant digits.

Radius r
Diameter d
Circumference c
Area A

Yabba dabba do :)