Cone Volume Table: Volume by Base radius
Reference table of volume for Cone Volume across a range of base radius values — exact, engine-computed figures you can read off at a glance.
Cone Volume Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Volume
84.8230
- Slant height
- 9.4868
- Total surface area
- 117.6856
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Cone Volume Calculator
The Cone Volume Calculator works out your volume, along with 2 related figures in an instant. Enter base radius and height 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 base radius.
- Enter the height.
- Read off your volume, together with slant height and total surface area — the calculator updates automatically, with no button to press.
Formula
The Cone Volume Calculator uses the formula:
Volume = 1 ÷ 3 × 3.141592653589793 × Base radius ^ 2 × Height
Worked example
For example, with base radius of 3 units and height of 9 units, the volume is 84.8230.
| Base radius | 3 units |
|---|---|
| Height | 9 units |
| Volume | 84.8230 |
|---|---|
| Slant height | 9.4868 |
| Total surface area | 117.6856 |
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
A cone holds one third of the cylinder with the same base and height: V = 1⁄3 πr²h. A cone with radius 3 and height 9 has a volume of about 84.82 cubic units.
The slant height is the distance from the base edge to the tip along the surface, found with √(r² + h²). For radius 3 and height 9 it is about 9.49 units.
Total surface area is πr(r + l), where l is the slant height. This adds the circular base to the curved side.
It is a geometric result: three identical cones exactly fill a cylinder of the same base and height, so the cone's volume is one third of πr²h.
Enter the base radius. Enter the height. Read off your volume, together with slant height and total surface area — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Cone Volume: Formula, Steps & Examples
Learn how to calculate Cone Volume — the formula explained step by step, with worked examples and a free calculator to check your answer.