Sphere Calculator

    Calculate sphere radius, diameter, great-circle circumference, surface area, volume, and great-circle area from one known value.

    example: radius 1
    Radius 1Diameter 2center

    Sphere properties from one known value

    Sphere calculator results in English search usually include radius, diameter, volume, surface area, and circumference. This page also reports great-circle area for a complete geometry snapshot.

    V is sphere volume and r is radius.

    A is surface area.

    C is great-circle circumference.

    Use one length unit throughout a calculation. Linear outputs use that unit, surface areas use square units, and volume uses cubic units.

    Frequently Asked Questions

    Sources and References

    Calculations are based on the listed reference sources. Links open in a new tab.

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