# Area of a 1 Centimeter Circle

What is the area of a circle with a DIAMETER of 1 cm (radius of 0.5 cm)? How big is a 1 centimeter circle?
Diameter
cm
Diameter
ft
in
Diameter
meters
Diameter
yards
Units
Area of a 1cm diameter circle
 0.7854 square centimeters 7.854e-05 square meters 0.12174 square inches 0.0008454 square feet 9.3933e-05 square yards
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.

Circle Area by Diameter
results may be rounded
Diameter cm2 in2 ft2
1.0 cm 0.7854 0.1217 0.0008454
1.1 cm 0.9503 0.1473 0.001023
1.2 cm 1.131 0.1753 0.001217
1.3 cm 1.327 0.2057 0.001429
1.4 cm 1.539 0.2386 0.001657
1.5 cm 1.767 0.2739 0.001902
1.6 cm 2.011 0.3116 0.002164
1.7 cm 2.270 0.3518 0.002443
1.8 cm 2.545 0.3944 0.002739
1.9 cm 2.835 0.4395 0.003052