Area of a 5 Inch Circle

What is the area of a circle with a DIAMETER of 5 inches (radius of 2.5 inches)? How big is a 5 inch circle?
ft
in
Area of a 5″ diameter circle
19.635square inches
0.13635square feet
0.015150square yards
126.68square centimeters
0.012668square 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
5.0 in 19.63 0.1364 126.7
5.1 in 20.43 0.1419 131.8
5.2 in 21.24 0.1475 137.0
5.3 in 22.06 0.1532 142.3
5.4 in 22.90 0.1590 147.8
Diameter in2 ft2 cm2
5.5 in 23.76 0.1650 153.3
5.6 in 24.63 0.1710 158.9
5.7 in 25.52 0.1772 164.6
5.8 in 26.42 0.1835 170.5
5.9 in 27.34 0.1899 176.4