# Ellipsoid volume calculator: three axes

> Calculate the volume of a nodule, cyst, lymph node or organ from the three orthogonal axes with the ellipsoid formula, and copy the measurement ready…

_Category: · Three axes · π/6 · publicado em 2026-11-10_

Canonical URL: https://www.laudos.ai/en/calculadoras/volume-elipsoide

## Page summary

- **What this page explains:** Calculate the volume of a nodule, cyst, lymph node or organ from the three orthogonal axes with the ellipsoid formula, and copy the measurement ready…
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## Formula

Volume = axis 1 × axis 2 × axis 3 × π/6

π/6 ≈ 0.523

## What to look for

-   Geometric estimate from the three orthogonal axes. Use the same measurements as in the report.

## Questions and answers

### What is the ellipsoid volume formula?

Volume = axis 1 × axis 2 × axis 3 × π/6. The three axes are orthogonal to each other and in the same unit.

### Where does 0.523 come from?

It is π divided by 6, about 0.5236. The volume of an ellipsoid is 4/3 × π × the three semi-axes; written with the full axes, this gives π/6 × axis 1 × axis 2 × axis 3.

### Can I enter the axes in millimeters?

Yes. With the axes in millimeters the volume is in mm³; with the axes in centimeters, in cm³. 1 cm³ equals 1,000 mm³ and 1 mL.

### Is ellipsoid volume an exact measurement?

No. It is a geometric estimate from the three orthogonal axes, and the calculation should use the same measurements that go into the report.

## Continue here

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