Sphere Volume Calculator

Your details

Pick the mode that matches the measurement you have. You can also solve in reverse, finding the radius from the volume or surface area.
All length measurements (radius, diameter, cap height) use this unit.
Distance from the centre to the surface.
cm
Displays the exact coefficient (e.g. 500/3 pi cm³) alongside the decimal result.
Volume
523.5988cm³
Surface area314.1593cm²
Circumference31.4159cm
Radius5cm
Diameter10cm

This sphere has a volume of 523.5988 cm³ and a surface area of 314.1593 cm².

  • Volume is 523.5988 cubic cm. In terms of pi, that is 166.6667 * pi cm³.
  • Doubling the radius multiplies the volume by eight (2³ = 8) because volume scales with the cube of the radius.
  • Surface area is 314.1593 square cm, which is 4 * pi * r² for a full sphere.
  • A sphere is the most volume-efficient shape: it encloses more volume per unit of surface area than any other 3D shape.

Next stepTry the circumference mode: measure the longest tape-measure loop around the sphere to get its volume without needing a ruler through the centre.

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