How it works
Ellipsoid volume = (4/3) × π × a × b × c, where a, b and c are the three semi-axes.
Input definitions
- First semi-axis
- Enter the value in the labeled unit.
- Second semi-axis
- Enter the value in the labeled unit.
- Third semi-axis
- Enter the value in the labeled unit.
A worked example
- First semi-axis
- 3
- Second semi-axis
- 2
- Third semi-axis
- 1
Assumptions & limits
Uses the units and scope stated in the input labels. Results are rounded for display; verify the model is appropriate for your situation.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-18. Content checked against the stated method and examples. Our verification approach.
Common questions
Are these radii or diameters?
Enter the three radii, or semi-axes. If you measured the full length, width and height, halve each dimension first.
How does Ellipsoid volume work?
Ellipsoid volume = (4/3) × π × a × b × c, where a, b and c are the three semi-axes.
What should I check before using Ellipsoid volume?
Uses the units and scope stated in the input labels. Results are rounded for display; verify the model is appropriate for your situation.