Calculate the volume of a cylinder using radius and height.
Enter the radius and height to calculate the volume of a cylinder.
The volume of a cylinder is calculated using the formula:
\[ V = \pi r^2 h \]
For example, if \( r = 2 \) and \( h = 5 \), then \( V = \pi \times 4 \times 5 \approx 62.83 \) cubic units.