Sphere VolumeFor Finding Volume of a SphereResult:523.599


radius (r)  units  

decimals  
A sphere with a radius of 5 units has a volume of 523.599 cubed units.
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Volume (denoted 'V') of a sphere with a known radius (denoted 'r') can be calculated using the formula below:
V = 4/3(PI*r^{3})
In plain english the volume of a sphere can be calculated by taking fourthirds of the product of radius (r) cubed and PI.
You can approximated PI using: 3.14159. If the number you are given for the radius does not have a lot of digits you may use a shorter approximation. If the radius you are given has a lot of digits then you may need to use a longer approximation.
Here is a stepbystep case that illustrates how to find the volume of a sphere with a radius of 5 meters. We'll use 3.14 to approximate PI because the radius we're given only has one digit.