Area of a 25 Centimeter Circle

What is the area of a circle with a DIAMETER of 25 cm (radius of 12.5 cm)? How big is a 25 centimeter circle?
cm
Area of a 25cm diameter circle
490.87square centimeters
0.049087square meters
76.086square inches
0.52837square feet
0.058708square yards
(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 cm2 in2 ft2
25.0 cm 490.9 76.09 0.5284
25.1 cm 494.8 76.70 0.5326
25.2 cm 498.8 77.31 0.5369
25.3 cm 502.7 77.92 0.5411
25.4 cm 506.7 78.54 0.5454
Diameter cm2 in2 ft2
25.5 cm 510.7 79.16 0.5497
25.6 cm 514.7 79.78 0.5540
25.7 cm 518.7 80.41 0.5584
25.8 cm 522.8 81.03 0.5627
25.9 cm 526.9 81.66 0.5671