# Area of a 100 Centimeter Circle

What is the area of a circle with a

__of 100 cm (radius of 50 cm)? How big is a 100 centimeter circle?__**DIAMETER**Diameter

cm

Diameter

ft

in

Diameter

meters

Diameter

yards

Units

Area of a 100cm diameter circle

7,854.0 | square centimeters |

0.78540 | square meters |

1,217.4 | square inches |

8.4540 | square feet |

0.93933 | 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.