Area of a 42 Meter Circle
What is the area of a circle with a DIAMETER of 42 meters (radius of 21 meters)? How big is a 42 meter circle?
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Area of a 42m diameter circle
| 1,385.4 | square meters |
| 13,854,000 | square centimeters |
| 0.13854 | hectares |
| 0.0013854 | square kilometers |
| 2,147,400 | square inches |
| 14,913 | square feet |
| 1,657.0 | square yards |
| 0.34235 | acres |
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.