Area of a 31 Inch Circle
What is the area of a circle with a DIAMETER of 31 inches (radius of 15.5 inches)? How big is a 31 inch circle?
Diameter
cm
Diameter
ft
in
Diameter
meters
Diameter
yards
Units
Area of a 31″ diameter circle
| 754.77 | square inches |
| 5.2414 | square feet |
| 0.58238 | square yards |
| 4,869.5 | square centimeters |
| 0.48695 | square meters |
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.