Cylinder Surface Area Calculator
Total and lateral area, volume and paint coverage.
Enter your values
ⓘ Live results
Results
- Total surface area
- 534.0708 sq units
- Lateral (side) area
- 376.9911 sq units
- One base area
- 78.5398 sq units
- Volume
- 942.4778 cubic units
- Circumference
- 31.4159
- Open-top area
- 455.5309 sq units
Quick answer
A cylinder's total surface area is 2πr² + 2πrh — the two circular ends plus the wrapped rectangle of the side.
A = 2πr² + 2πrh
How to use the Cylinder Surface Area Calculator
- 1Enter the radius of the circular base.
- 2Enter the height of the cylinder.
- 3Use the open-top figure for tanks and cans without a lid.
Worked example
Using the values the calculator loads with:
Inputs
- Radius5 units
- Height12 units
Results
- Total surface area534.0708 sq units
- Lateral (side) area376.9911 sq units
- One base area78.5398 sq units
- Volume942.4778 cubic units
- Circumference31.4159
- Open-top area455.5309 sq units
Frequently asked questions
How much paint will I need?
Divide the relevant area by the coverage rate on the tin, then add about 10% for a second coat on porous surfaces.
What if I only know the diameter?
Halve it — the radius is always half the diameter.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.