Area of a 27 Inch Circle

What is the area of a circle with a DIAMETER of 27 inches (radius of 13.5 inches)? How big is a 27 inch circle?
ft
in
Area of a 27″ diameter circle
572.56square inches
3.9761square feet
0.44179square yards
3,693.9square centimeters
0.36939square meters
(results may be rounded)

Area of a Circle Formula

The area of a circle is pi times the square of its radius. The radius is half the diameter.

Area = π * (Diameter / 2)2

Diameter of a Circle

The diameter of a circle is the distance from one edge to the other, passing through the center. It is twice the radius.

Diameter
Circle Area by Diameter
(results are rounded)
Diameter in2 ft2 cm2
27.0 in 572.6 3.976 3,694
27.1 in 576.8 4.006 3,721
27.2 in 581.1 4.035 3,749
27.3 in 585.3 4.065 3,776
27.4 in 589.6 4.095 3,804
Diameter in2 ft2 cm2
27.5 in 594.0 4.125 3,832
27.6 in 598.3 4.155 3,860
27.7 in 602.6 4.185 3,888
27.8 in 607.0 4.215 3,916
27.9 in 611.4 4.246 3,944