Calculate cylinder volume.
GeometryOpen
Volume of a Sphere Calculator
Quick answer
If radius is 7, the volume is 1,436.76 cubic units.
Sphere volume: Volume = 4 ÷ 3 × π × radius³.
Enter your values
Volume
1,436.76cubic units
The amount of three-dimensional space this occupies, in cubic units.
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About the Volume of a Sphere Calculator
The volume of a sphere is the space inside a ball. Enter the radius to find it — useful for tanks, balls, bubbles and domes. A sphere of radius 7 has a volume of about 1,436.76 cubic units.
Because the radius is cubed, small changes in radius have a large effect on volume.
Sphere volume
Volume = 4 ÷ 3 × π × radius³
Things to keep in mind
- Halve the diameter to get the radius before entering it.
- Doubling the radius makes the volume eight times as large.
- The answer is in cubic units of the unit you used.
See how the result changes
Each table re-runs this calculator with one value changed and everything else left as it is.
Volume by radius
If radius goes from 7 to 10.5, volume changes from 1,436.76 cubic units to 4,849.05 cubic units (+238%).
| Radius | Volume |
|---|---|
| 3.5 | 179.5944 cubic units |
| 5.25 | 606.131 cubic units |
| 7start | 1,436.76 cubic units |
| 10.5 | 4,849.05 cubic units |
| 14 | 11,494.04 cubic units |
MATH GUIDE
A quick guide to Sphere Volume
Use it to get an accurate volume in seconds — free, with no sign-up.
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See your volume the moment you enter your numbers.
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How to Use the Sphere Volume Calculator
1
Enter Radius
Provide your radius.
2
View Your Results
Get your volume instantly, calculated on our server.
What is Sphere Volume?
This math tool works out your volume instantly, so you don't have to do the math by hand.
“One quick calculation, so you always know your volume before you decide.”
What Affects Your Volume
Your volume depends on the values below.
Radius
Changing your radius changes your volume.
Example Result
Here's what you can expect from a sphere volume calculation:
- Radius
- 7
- Volume
- 1,436.76 cubic units
Frequently Asked Questions
- How does radius affect volume?
- If radius goes from 7 to 10.5, volume changes from 1,436.76 cubic units to 4,849.05 cubic units (+238%).
- How to calculate sphere volume?
- Fill in radius in the Volume of a Sphere Calculator above and your volume is calculated instantly. Change any value to see how the result responds.
- What does an example sphere volume calculation look like?
- If radius is 7, the volume is 1,436.76 cubic units.
- Is this calculator free to use?
- Yes — every calculator on this site is completely free, with no sign-up or account required.
- How accurate is this calculator?
- It uses the standard formula and calculates on our server for every request, so results are precise for the values you enter.
- Is my data saved anywhere?
- No. Nothing you enter is stored or sent anywhere unless you choose to share a link with your values included.
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