Sphere Calculator
Find sphere volume, surface area, and diameter from its radius.
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How to use Sphere Calculator
A sphere with radius r encloses volume 4πr³/3 and has surface area 4πr². Diameter is twice the radius.
- Enter radius.
- Check that the input follows the stated limits and uses consistent units.
- Run the calculator, review the result, then copy or download it.
Good to know
- A perfect solid sphere and a positive radius are assumed. Hollow shells and ellipsoids require other models.
- Decimal inputs have at most 120 characters and magnitude from 1e-100 to 1e15, or zero. Floating-point results are rounded to 12 significant digits; extreme derived results may underflow or be rejected. Exact integer results are identified separately.
Common questions
What calculation does Sphere Calculator perform?
A sphere with radius r encloses volume 4πr³/3 and has surface area 4πr². Diameter is twice the radius.
Are the result units different?
Diameter uses length units, surface area uses square units, and volume uses cubic units.
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