# How Do You Convert Diameter to Square-Footage?

An easy formula is used by the transformation of certain diameter to squarefeet for discovering the location of a circle. This is helpful for determining just how much paint to get to cover a ceiling that is ring-shaped or maybe just how much grass seed to obtain to get a ring-shaped-shaped spot of yard. The method for the location of a circle is the radius squared multiplied by the constant pi, or 3.14159. Calculators range from the continuous pi on a single key, getting rid of the necessity to recall it.

Assess the diameter of the ring-shaped region in feet utilizing the tape measure. The diameter is a straight-line that passes through the middle of a circle. By way of example, suppose the diameter of the annular region to be 12-feet.

Split the amount of the diameter by 2 to get the radius (12 / 2 = 6). The radius is 6 feet.

Multiply the radius alone to square the quantity (6 x-6 = 3 6). Multiply the result by pi (use the button on the calculator) or 3.14159 (3-6 x 3.14159 = 113.1). The effect is the location of the circle in square-feet–113.1 squarefeet.