# Area of a 1 Foot Circle

What is the area of a circle with a

__of 1 feet (radius of 0.5 feet)? How big is a 1 foot circle?__**DIAMETER**Diameter

cm

Diameter

ft

in

Diameter

meters

Diameter

yards

Units

Area of a 1′ diameter circle

0.78540 | square feet |

113.10 | square inches |

0.087266 | square yards |

0.072966 | square meters |

729.66 | square centimeters |

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.