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?

Area of a 10cm diameter circle

(results may be rounded)

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

Area = π * (Diameter / 2)²

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

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