Area of a 12 Inch Circle

What is the area of a circle with a DIAMETER of 12 inches (radius of 6 inches)? How big is a 12 inch circle?
ft
in
Area of a 12″ diameter circle
113.10square inches
0.78540square feet
0.087266square yards
729.66square centimeters
0.072966square 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
12.0 in 113.1 0.7854 729.7
12.1 in 115.0 0.7985 741.9
12.2 in 116.9 0.8118 754.2
12.3 in 118.8 0.8252 766.6
12.4 in 120.8 0.8386 779.1
Diameter in2 ft2 cm2
12.5 in 122.7 0.8522 791.7
12.6 in 124.7 0.8659 804.4
12.7 in 126.7 0.8797 817.3
12.8 in 128.7 0.8936 830.2
12.9 in 130.7 0.9076 843.2