Area of a 90 Centimeter Circle

What is the area of a circle with a DIAMETER of 90 cm (radius of 45 cm)? How big is a 90 centimeter circle?

Diameter

meters

Diameter

yards

Units

Area of a 90cm 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	cm²	in²	ft²
90.0 cm	6,362	986.1	6.848
90.1 cm	6,376	988.3	6.863
90.2 cm	6,390	990.5	6.878
90.3 cm	6,404	992.7	6.893
90.4 cm	6,418	994.9	6.909
90.5 cm	6,433	997.1	6.924
90.6 cm	6,447	999.3	6.939
90.7 cm	6,461	1,001	6.955
90.8 cm	6,475	1,004	6.970
90.9 cm	6,490	1,006	6.985