Cylinder & Cone Volume Calculator

Cylinders and cones are fundamental 3D shapes encountered frequently in daily life. The cylinder volume is 'V = πr²h' (base area × height) with surface area '2πr(r+h)'. The cone volume is 'V = πr²h/3' (one-third of a cylinder), with slant height 'l = √(r²+h²)' and surface area 'πr(r+l)'. This tool lets you switch between cylinder and cone modes with one click, automatically calculating all values from just radius and height inputs. Useful for calculating container capacities, architectural and manufacturing design, math education, and exam preparation. Formulas are displayed alongside results for verification. Precision rounding using significant figures ensures reliable calculations.