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Volume of a Hemisphere Calculator

🧊 Volume & surface area (3D). Use the Volume of a hemisphere formula to find volume, radius: pick the value you want, type the others, and the answer updates as you go.

V=23πr3V = \tfrac{2}{3}\pi r^3
Volume261.8 cm³

Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.

What each letter means

QuantityUnit
Volumecm³
Radiuscm

Worked example

Find the volume when Radius = 5 cm.

Using V = 2/3π r³: Volume = 261.8 cm³.

Frequently asked questions

What is the formula for Volume of a hemisphere?

V = 2/3π r³.

What do the letters stand for, and what units are used?

Volume in cm³, Radius in cm.

How do you calculate volume?

Put the values into V = 2/3π r³. For example, with Radius = 5 cm, volume = 261.8 cm³.

Can I solve for a different value?

Yes. In the calculator above, pick the circle next to any value (volume, radius) and fill in the others: it rearranges the formula for you.

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