Area of a 15 Inch Circle

What is the area of a circle with a DIAMETER of 15 inches (radius of 7.5 inches)? How big is a 15 inch circle?

Diameter

meters

Diameter

yards

Units

Area of a 15″ diameter circle

results may be rounded

The area of a circle is pi times the square of its radius. The radius is half the diameter.

Area = π * (Diameter / 2)²

The diameter of a circle is the distance from one edge to the other, passing through the center. It is twice the radius.

Circle Area by Diameter

results may be rounded

Diameter	in²	ft²	cm²
15.0 in	176.7	1.227	1,140
15.1 in	179.1	1.244	1,155
15.2 in	181.5	1.260	1,171
15.3 in	183.9	1.277	1,186
15.4 in	186.3	1.294	1,202
15.5 in	188.7	1.310	1,217
15.6 in	191.1	1.327	1,233
15.7 in	193.6	1.344	1,249
15.8 in	196.1	1.362	1,265
15.9 in	198.6	1.379	1,281