Area of a 26 Inch Circle

What is the area of a circle with a DIAMETER of 26 inches (radius of 13 inches)? How big is a 26 inch circle?
ft
in
Area of a 26″ diameter circle
530.93square inches
3.6870square feet
0.40967square yards
3,425.3square centimeters
0.34253square 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
26.0 in 530.9 3.687 3,425
26.1 in 535.0 3.715 3,452
26.2 in 539.1 3.744 3,478
26.3 in 543.3 3.773 3,505
26.4 in 547.4 3.801 3,532
Diameter in2 ft2 cm2
26.5 in 551.5 3.830 3,558
26.6 in 555.7 3.859 3,585
26.7 in 559.9 3.888 3,612
26.8 in 564.1 3.917 3,639
26.9 in 568.3 3.947 3,667