Volume Calota Esférica
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
V = πh²(3R−h)/3
About this calculator
The spherical cap volume calculator determines the volume of the part of a sphere cut by a plane, known as a spherical cap. It uses the formula V = (πh²/3)(3R−h), where R is the radius of the original sphere and h is the height of the cap. This tool is useful in engineering, architecture, and design, allowing quick calculation of the space occupied by domes, partially filled spherical tanks, or any cap-shaped object.
The calculation is straightforward: enter the sphere radius and cap height. The formula derives from integrating cross-sectional areas, but the calculator does all the work. Ensure that h ≤ R for a valid cap; if h is larger, the result does not represent a cap but a larger spherical segment. Use consistent units, such as centimeters or meters, to get the volume in the corresponding cubic unit.
Use cases include determining the liquid volume in a partially filled spherical tank, calculating material needed for a dome, or estimating the space occupied by a spherical lens. The calculator is practical for students, teachers, and professionals who need quick results without complex manual calculations.
Frequently asked questions
What is a spherical cap?
It is the part of a sphere cut by a plane. Think of a ball cut in half; each half is a cap, but the term applies to any height.
What is the difference between a cap and a spherical segment?
A cap has only one base (circle), while a spherical segment has two bases. The cap formula is a special case.
Can I use the calculator for h greater than R?
No. If h > R, the height exceeds the radius, and the calculated volume will not correspond to a valid cap. In that case, consider using the spherical segment formula.
How do I convert the volume to liters?
If measurements are in centimeters, the volume in cm³ equals milliliters. Divide by 1000 to get liters. If in meters, multiply by 1000.