Area of a 10 Centimeter Circle

What is the area of a circle with a DIAMETER of 10 cm (radius of 5 cm)? How big is a 10 centimeter circle?
cm
Area of a 10cm diameter circle
78.540square centimeters
0.0078540square meters
12.174square inches
0.084540square feet
0.0093933square 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
10.0 cm 78.54 12.17 0.08454
10.1 cm 80.12 12.42 0.08624
10.2 cm 81.71 12.67 0.08795
10.3 cm 83.32 12.92 0.08969
10.4 cm 84.95 13.17 0.09144
Diameter cm2 in2 ft2
10.5 cm 86.59 13.42 0.09320
10.6 cm 88.25 13.68 0.09499
10.7 cm 89.92 13.94 0.09679
10.8 cm 91.61 14.20 0.09861
10.9 cm 93.31 14.46 0.1004