# Area of a 45 Foot Circle

What is the area of a circle with a

__of 45 feet (radius of 22.5 feet)? How big is a 45 foot circle?__**DIAMETER**Diameter

cm

Diameter

ft

in

Diameter

meters

Diameter

yards

Units

Area of a 45′ diameter circle

1,590.4 | square feet |

229,020 | square inches |

176.71 | square yards |

0.036511 | acres |

147.76 | square meters |

1,477,600 | square centimeters |

0.014776 | hectares |

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.