Area of a 18 Meter Circle

What is the area of a circle with a DIAMETER of 18 meters (radius of 9 meters)? How big is a 18 meter circle?
meters
Area of a 18m diameter circle
254.47square meters
2,544,690square centimeters
0.025447hectares
394,428square inches
2,739.1square feet
304.34square yards
0.062881acres
(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 m2 ft2
18.0 m 254.5 2,739
18.1 m 257.3 2,770
18.2 m 260.2 2,800
18.3 m 263.0 2,831
18.4 m 265.9 2,862
Diameter m2 ft2
18.5 m 268.8 2,893
18.6 m 271.7 2,925
18.7 m 274.6 2,956
18.8 m 277.6 2,988
18.9 m 280.6 3,020