Frustum Volume Calculator (Cone)
📐 Frustum dimensions
- R = larger radius (top / bottom ? — usually bottom is larger, but formula works both)
- r = smaller radius
- h = perpendicular height
✔️ Enter any positive numbers. Decimals / commas allowed.
units
use point (.) or comma (,) — both work
units
comma will be converted
units
perpendicular height
📊 Volume result
0.00
cubic units
🔍 Step-by-step
Enter R, r, h and click calculate.
Volume = (π·h)/3 · (R² + R·r + r²)