The Perimeter (Circumference) of a Circular Slab Circular Concrete Slabequation computes the perimeter (circumference) of a circular slab base on the radius (r).
Instructions: Choose your preferred units and enter the following:
Circular Slab Perimeter (P): The perimeter of the circular slab is returned in feet. However, this can be automatically converted to other length units (e.g. meters) via the pull-down menu.