Cone Calculator
Volume, lateral area, slant height for any cone
Use this when you need a fast, accurate result — no sign-up, works entirely in your browser.
Volume—
Lateral surface area—
Total surface area—
Slant height—
How to Use
- Enter your details into the fields above.
- Click the calculate button to get your result instantly.
- Use the clear button to start a new calculation.
Example
- Radius 3, height 4 → Volume ≈ 37.70; slant height 5; lateral area ≈ 47.12; total area ≈ 75.40
- Radius 6, height 8 → Volume ≈ 301.59, slant height 10, total surface area ≈ 301.59
Formula
Volume = (1/3)πr²h. Slant height ℓ = √(r² + h²). Lateral area = πrℓ. Total area = πrℓ + πr².
About Cone Calculator
Volume, lateral area, slant height for any cone. This free online tool gives you fast, accurate results without registration or downloads.
Everything runs locally in your browser, so your data is never uploaded or stored — privacy first.
Frequently Asked Questions
Is this tool free to use? +
Yes, it is completely free with no registration or download required.
Is my data private? +
Yes. Everything is processed locally in your browser. Nothing is uploaded or stored on our servers.
Does it work on mobile? +
Yes, it works on any device — phone, tablet, or desktop.