Diameter of a Circle Calculator

Your details

Choose which circle measurement you already have.
The distance from the center of the circle to its edge.
cm
Diameter
10

Straight-across distance through the center (d = 2r)

Radius5
Circumference31.4159
Area78.5398
Unitcm

Diameter is 10.0000 cm.

  • Radius is exactly half the diameter: 5.000 cm.
  • Circumference is pi times the diameter: 31.416 cm. This is roughly 3.14159 times the diameter, which is pi.
  • Area enclosed by this circle is 78.540 cm².

Next stepTo find the volume of a sphere with this diameter, cube the radius (r³) and multiply by (4/3)π.

 = Powered by OnlyCalculators