Area of a 25 Inch Circle

What is the area of a circle with a DIAMETER of 25 inches (radius of 12.5 inches)? How big is a 25 inch circle?
ft
in
Area of a 25″ diameter circle
490.87square inches
3.4088square feet
0.37876square yards
3,166.9square centimeters
0.31669square 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
25.0 in 490.9 3.409 3,167
25.1 in 494.8 3.436 3,192
25.2 in 498.8 3.464 3,218
25.3 in 502.7 3.491 3,243
25.4 in 506.7 3.519 3,269
Diameter in2 ft2 cm2
25.5 in 510.7 3.547 3,295
25.6 in 514.7 3.574 3,321
25.7 in 518.7 3.602 3,347
25.8 in 522.8 3.631 3,373
25.9 in 526.9 3.659 3,399