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Cone Frustum Calculator
Volume and surface area of a truncated cone.
410.50144007
Volume
8.24621125
Slant height
207.24989349
Lateral area
314.06404372
Total surface
Runs entirely in your browser. Nothing is sent anywhere.
How it works
- 1Enter your values.
- 2See the result update instantly as you type.
- 3Change any value to compare scenarios.
About this tool
Cone Frustum Calculator: Volume and surface area of a truncated cone. Type your numbers and the result is calculated instantly — no button to press, nothing to install. All math runs locally in your browser, so the values you enter are never sent anywhere.
Example
| Input | |
|---|---|
| Bottom radius R | 5 |
| Top radius r | 3 |
| Height | 8 |
| Result | |
| Volume | 410.50144007 |
| Slant height | 8.24621125 |
| Lateral area | 207.24989349 |
| Total surface | 314.06404372 |
How do I use the Cone Frustum Calculator?
Enter your values. See the result update instantly as you type. Change any value to compare scenarios.
Is the Cone Frustum Calculator free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Is my data sent to a server?
No. Everything is calculated locally in your browser. Nothing you enter is uploaded, logged or stored.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.