Volume of a sphere calculator
Enter the dimensions of a sphere and read off its volume and surface area. Volumes convert to litres and gallons with the unit selector.
Volume
113.097 34m³
- Surface area
- 113.097 34
- Diameter
- 6
- Great circle circumference
- 18.849 556
Show the working
- Radius = 3
- Volume = 4/3 * pi * 3^3 = 113.097
- Surface area = 4 * pi * 3^2 = 113.097
- Diameter = 2*3 = 6
- Great circle circumference = 2*pi*3 = 18.8496
Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.
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The formula
- volume = (4/3) pi r^3
- surface area = 4 pi r^2
A sphere has the smallest surface area of any shape enclosing a given volume, which is why bubbles are round.
Switch the volume unit to litres or US gallons to read the capacity directly.