Area of a 45 Foot Circle

What is the area of a circle with a DIAMETER of 45 feet (radius of 22.5 feet)? How big is a 45 foot circle?

Diameter

meters

Diameter

yards

Units

Area of a 45′ 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	ft²	in²	m²
45′0″	1,590	229,000	147.8
45′1″	1,596	229,900	148.3
45′2″	1,602	230,700	148.9
45′3″	1,608	231,600	149.4
45′4″	1,614	232,400	150.0
45′5″	1,620	233,300	150.5
45′6″	1,626	234,100	151.1
45′7″	1,632	235,000	151.6
45′8″	1,638	235,900	152.2
45′9″	1,644	236,700	152.7
45′10″	1,650	237,600	153.3
45′11″	1,656	238,400	153.8