Hemisphere Table: Volume by Radius
Reference table of volume for Hemisphere across a range of radius values — exact, engine-computed figures you can read off at a glance.
Hemisphere Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Volume
452.3893
- Total surface area
- 339.2920
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Hemisphere Calculator
The Hemisphere Calculator works out your volume, along with 1 related figure in an instant. Enter radius and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the radius.
- Read off your volume, together with total surface area — the calculator updates automatically, with no button to press.
Formula
The Hemisphere Calculator uses the formula:
Volume = 2 ÷ 3 × 3.141592653589793 × Radius ^ 3
Worked example
For example, with radius of 6 units, the volume is 452.3893.
| Radius | 6 units |
|---|
| Volume | 452.3893 |
|---|---|
| Total surface area | 339.2920 |
Results are estimates for educational use, not professional advice.
Key terms explained
- Surface area
- The total area of all the outer faces of a three-dimensional object.
- Radius
- The distance from the centre of a circle or sphere to its edge.
- Volume
- The amount of three-dimensional space an object occupies, measured in cubic units.
- Area
- The amount of two-dimensional space a shape covers, measured in square units.
Frequently asked questions
It is half a sphere's volume: V = 2⁄3 πr³. A hemisphere of radius 6 has a volume of about 452.39 cubic units.
Total surface area is 3πr², which is the curved half plus the flat circular base. For radius 6 it is about 339.29 square units.
The curved surface is 2πr², and adding the flat circular base of πr² gives 3πr² in total.
It is exactly half of a sphere, like a dome or a bowl shape cut through the centre.
The Hemisphere Calculator uses the formula: Volume = 2 ÷ 3 × 3.141592653589793 × Radius ^ 3. For example, with radius of 6 units, the volume is 452.3893.
Enter the radius. Read off your volume, together with total surface area — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Hemisphere: Formula, Steps & Examples
Learn how to calculate Hemisphere — the formula explained step by step, with worked examples and a free calculator to check your answer.