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Instant result
Enter the data and press the button to do the calculation.
Online Calculator
Sphere Calculator
Enter the radius to calculate a sphere’s diameter, surface area, and volume.
Information
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Local processing
The values are processed directly in your browser.
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Free
No registration, external API or subscription required.
Frequently asked questions
What is the volume of a sphere?
V = 4πr³/3.
What is the area of a sphere?
A = 4πr².
How do you get the diameter?
By multiplying the radius by 2.
Can I choose units?
Yes.