Surface area of solids
Pick a solid and say which faces count: fully closed, no lid, or only the sides.
Result
18.849556 m²Surface counted
- Side (lateral) surface
- 12.566371 m²
- Area of one base
- 3.141593 m²
- Bases counted
- 2
- Volume
- 6.283185 m³
Inputs
- Solid
- Cylinder
- Faces counted
- Closed (all faces)
- Radius
- 1
- Height
- 2
- Unit of the measurements
- m
How it is calculated
Cube: 6 × s². Box: 2 × (lw + lh + wh).
Result
Surface counted
- Side (lateral) surface
- 12.566371 m²
- Area of one base
- 3.141593 m²
- Bases counted
- 2
How it is calculated
- Cube: 6 × s². Box: 2 × (lw + lh + wh).
- Cylinder: sides 2πrh, each base πr².
- Cone: sides πr × √(r² + h²), base πr². Sphere: 4πr².
- Pyramid: sides 2 × s × √((s/2)² + h²), base s².
- Total = sides + bases counted × area of one base.
Example
Closed cylinder, radius 1 m and height 2 m: 2π × 1 × 2 + 2 × π ≈ 18.85 m².
Good to know
- Material thickness and waste are not counted.
- For the pyramid and cone, the height is the straight height (tip to base).
Frequently asked questions
What is this tool used for?
Pick a solid and say which faces count: fully closed, no lid, or only the sides.
How is the result calculated?
Cube: 6 × s². Box: 2 × (lw + lh + wh).
What should I check before using the result?
Material thickness and waste are not counted.