運用

Area Of A Circle Calculator

広告

Distance from the centre of the circle to any point on its edge.

ライブプレビュー

入力中に結果が即座に更新されます。

結果

円領域

706.86 cm²

A = π × r²

半径

15.00 cm

Half of the diameter

直径

30.00 cm

Distance across the circle

94.25 cm

Perimeter of the circle

面積変換

Millimeters (mm²) 70,685.83
Centimeters (cm²) 706.86
Meters (m²) 0.07
Kilometers (km²) 0.00
Inches (in²) 109.56
Feet (ft²) 0.76
Yards (yd²) 0.08

半径、直径、円周

ユニット 半径 直径
Millimeters (mm) 150.00 300.00 942.48
Centimeters (cm) 15.00 30.00 94.25
Meters (m) 0.15 0.30 0.94
Kilometers (km) 0.00 0.00 0.00
Inches (in) 5.91 11.81 37.11
Feet (ft) 0.49 0.98 3.09
Yards (yd) 0.16 0.33 1.03

デザインの洞察

Quarter circle area

176.71 cm²

Perfect for pizza slices, rounded corners, and quadrant designs.

Half circle area

353.43 cm²

Great for semicircular arches, stages, and window layouts.

Matching square side

26.59 cm

Side length of a square with the very same area.

Sphere surface area

2,827.43 cm²

Surface area if this radius wrapped a full 3D sphere.

Sphere volume

14,137.17 cm³

Volume enclosed by a sphere using the same radius.

計算方法

  1. Given radius = 15.00 cm
  2. Radius = 15.00 cm
  3. A = π × r²
  4. A = π × (15.00 cm)²
  5. A = 706.86 cm²
Calculate the area, circumference, and helpful design insights for any circle.
広告

APIドキュメントは近日公開予定

Documentation for this tool is being prepared. Please check back later or visit our full API documentation.