Spherical Cap Volume calculator.
Measure a spherical end cap from sphere radius and cap height.
Your inputs
Use measurements from your plan and properties from your chosen product. Any prefilled values are illustrative.
A clear estimate starts here.
Enter your dimensions and product details to see the quantity and purchase breakdown.
Formula and assumptions
How this calculation works.
The cap is bounded by a plane perpendicular to its symmetry axis. It is not a cylindrical depth fraction or a hemispherical assumption unless height equals radius.
A worked example
Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.
- Sphere radius
- 1 m
- Cap height measured from pole
- 1 m
Cap volume: 2.09 m³
Before you purchase
Use dimensions from your plan and properties from your chosen product. Any design spacing, section or fixing pattern must already be specified.
The cap is bounded by a plane perpendicular to its symmetry axis. It is not a cylindrical depth fraction or a hemispherical assumption unless height equals radius.
Dimensions, quantities, prices, timing and product properties are supplied by you. This tool does not select construction specifications or assess structural, electrical or hydraulic suitability.
Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.