Area of a 3 Inch Circle

What is the area of a circle with a DIAMETER of 3 inches (radius of 1.5 inches)? How big is a 3 inch circle?
ft
in
Area of a 3″ diameter circle
7.0686square inches
0.049087square feet
0.0054542square yards
45.604square centimeters
0.0045604square 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
3.0 in 7.069 0.04909 45.60
3.1 in 7.548 0.05241 48.69
3.2 in 8.042 0.05585 51.89
3.3 in 8.553 0.05940 55.18
3.4 in 9.079 0.06305 58.58
Diameter in2 ft2 cm2
3.5 in 9.621 0.06681 62.07
3.6 in 10.18 0.07069 65.67
3.7 in 10.75 0.07467 69.37
3.8 in 11.34 0.07876 73.17
3.9 in 11.95 0.08296 77.07