Sphere Calculator – Volume & Surface Area

Sphere Calculator - Volume & Surface Area | Multi-Tools Hub

Sphere Calculator

Calculate the volume and surface area of a sphere with our free online calculator.

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Enter Sphere Dimensions
units
The radius is the distance from the center to any point on the sphere's surface.
units
Diameter = 2 × Radius. Enter either radius or diameter.
Results

Enter the radius or diameter to calculate results.

About Sphere Calculator
What is a Sphere?

A sphere is a perfectly round three-dimensional object where every point on the surface is equidistant from the center. It's one of the most fundamental shapes in geometry.

Key Properties
  • All points on the surface are at the same distance from the center
  • Has infinite rotational symmetry
  • No edges or vertices
  • Perfectly symmetrical in all directions
Formulas

Volume: V = (4/3)πr³

Surface Area: A = 4πr²

Diameter: d = 2r

Radius: r = d/2

Common Applications
  • Planets and celestial bodies
  • Sports balls (basketball, soccer, etc.)
  • Bubbles and soap films
  • Storage tanks and containers
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