Area of a 15 Centimeter Circle

What is the area of a circle with a DIAMETER of 15 cm (radius of 7.5 cm)? How big is a 15 centimeter circle?
cm
Area of a 15cm diameter circle
176.71square centimeters
0.017671square meters
27.391square inches
0.19021square feet
0.021135square yards
(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 cm2 in2 ft2
15.0 cm 176.7 27.39 0.1902
15.1 cm 179.1 27.76 0.1928
15.2 cm 181.5 28.13 0.1953
15.3 cm 183.9 28.50 0.1979
15.4 cm 186.3 28.87 0.2005
Diameter cm2 in2 ft2
15.5 cm 188.7 29.25 0.2031
15.6 cm 191.1 29.63 0.2057
15.7 cm 193.6 30.01 0.2084
15.8 cm 196.1 30.39 0.2110
15.9 cm 198.6 30.78 0.2137