Sphere Calculator
Calculate volume, surface area, diameter, and circumference of a sphere from its radius.
cm
Distance from center to surface
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Volume
0 cm³
V = (4/3)πr³ = (4/3) × π × 5³ = 0
Surface Area
4πr²
0 cm²
Diameter
2r
0 cm
Circumference
2πr
0 cm
Documentation
Understanding Spheres
A sphere is a perfectly round 3D shape where every point on its surface is equidistant from its center. Examples include balls, planets, and bubbles.
Volume
Surface Area
Circumference
Tip: A sphere has the smallest surface area for a given volume of any 3D shape.
Frequently Asked Questions
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