Volume and Area of a Sphere

Calculator

Enter the radius, diameter, surface area or volume of a Sphereto find the other three. The calculations are done "live":

 

How to Calculate the Volume and Surface Area

Sphere Radius

Surface Area = 4 × π × r2

Example: r = 5

Surface Area = 4 × π × r2
 = 4 × π × 52
 = 4 × π × 25
 = 100 π
 ≈ 314

 

Volume = (4/3) × π × r3

Example: r = 5

Volume = (4/3) × π × r3
  = (4/3) × π × 53
 = (4/3) × π × 125
 ≈ 524