Cylinder Calculator
Enter the radius and height of a cylinder to find its volume and surface area.
units
units
351.8584
251.3274
Formula
Examples
| Input | Result |
|---|---|
| radius = 4, height = 10 | Volume ≈ 502.6548, Surface ≈ 351.8584 |
About this calculator
A right circular cylinder has two parallel circular bases joined by a curved side. Its volume is the base area (πr²) multiplied by the height, the same way you would stack identical circular discs.
The total surface area combines the two circular caps (2πr²) with the curved lateral surface (2πrh), giving 2πr(r + h). Cylinders model pipes, tanks, cans and rollers, so these formulas are widely used in engineering and packaging.
Frequently asked questions
Multiply the area of the circular base by the height: Volume = π × r² × h. A cylinder with radius 4 and height 10 holds about 502.65 cubic units.
Lateral surface area (2πrh) is just the curved side. Total surface area adds the two circular ends (2πr²), giving 2πr(r + h).
If you enter dimensions in centimeters, the volume is in cubic centimeters (mL); divide by 1000 to get liters.
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