ToolPony.comDocumentation

Surface area calculator

Solve spheres, cones, tanks, capsules, caps, ellipsoids, pyramids and hollow tubes with mixed dimensions.

Get started

  1. Use the example values or enter your own measurements.
  2. Calculate, then copy the result or download the available details.

Example

Input

Sphere with radius 2 m

Expected result

≈50.2655 m²

Try it

Good to know

The calculation runs in your browser. Use consistent units in fields with no explicit unit.

Calculation method

Total surface area includes end faces. Where applicable, lateral and end-face areas are listed separately. Ellipsoid area is approximate.

Acylinder=2πr2+2πrh,Asphere=4πr2A_{\mathrm{cylinder}}=2\pi r^2+2\pi rh,\qquad A_{\mathrm{sphere}}=4\pi r^2

Calculation mode

Sphere
  • Radius
  • Radius unit
  • Area unit
Cone
  • Radius
  • Radius unit
  • Perpendicular height
  • Perpendicular height unit
  • Area unit
Cube
  • Edge length
  • Edge length unit
  • Area unit
Cylinder
  • Radius
  • Radius unit
  • Perpendicular height
  • Perpendicular height unit
  • Area unit
Rectangular tank
  • Length
  • Length unit
  • Width
  • Width unit
  • Perpendicular height
  • Perpendicular height unit
  • Area unit
Capsule
  • Radius
  • Radius unit
  • Straight cylinder length
  • Straight cylinder length unit
  • Area unit
Spherical cap
  • Sphere radius
  • Sphere radius unit
  • Base radius
  • Base radius unit
  • Cap height
  • Cap height unit
  • Cap with both radii known · Smaller cap / Larger cap
  • Area unit
Conical frustum
  • First end radius
  • First end radius unit
  • Second end radius
  • Second end radius unit
  • Perpendicular height
  • Perpendicular height unit
  • Area unit
Ellipsoid
  • First semi-axis
  • First semi-axis unit
  • Second semi-axis
  • Second semi-axis unit
  • Third semi-axis
  • Third semi-axis unit
  • Area unit
Square pyramid
  • Edge length
  • Edge length unit
  • Perpendicular height
  • Perpendicular height unit
  • Area unit
Hollow tube
  • Outer diameter
  • Outer diameter unit
  • Inner diameter
  • Inner diameter unit
  • Length
  • Length unit
  • Area unit
Hemisphere
  • Radius
  • Radius unit
  • Area unit
Ring torus
  • Centerline radius
  • Centerline radius unit
  • Tube radius
  • Tube radius unit
  • Area unit