Convertools

Ellipse Area from Semi-Axes

Calculate ellipse area from semi-major and semi-minor axes using A = πab.

Author

Dr. Lucia Fernandez Vega

Math editorial contributor

Argentine astrophysicist from the University of Buenos Aires, contributing to exoplanet detection with the James Webb telescope

Reviewed by

Dr. Samuel Okafor

Math content reviewer

Nigerian-Canadian data scientist with a PhD from the University of Toronto, building ML models for early cancer detection

Last updatedFebruary 22, 2026

PublishedFebruary 22, 2026

Table of Contents

  1. Reference values
  2. Calculator
  3. Reference table
  4. FAQs
  5. Methodology and review
  6. Related conversions

3 units Semi-major Axis (a); 2 units Semi-minor Axis (b) =

18.8496 sq units

Representative value from the Ellipse Area from Semi-Axes reference table.

Reference Values

Browse 25 reference values with individual detail pages for quick lookup.

Browse all reference values

Ellipse Area from Semi-Axes

Calculate ellipse area from semi-major and semi-minor axes using A = πab.

Calculated Result

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Reference Table

Use this complete table for quick lookup and internal linking to specific value pages.

Ellipse Area from Semi-Axes Reference
ScenarioEllipse Area
1 units Semi-major Axis (a); 1 units Semi-minor Axis (b)3.1416 sq units
1 units Semi-major Axis (a); 1.5 units Semi-minor Axis (b)4.7124 sq units
1 units Semi-major Axis (a); 2 units Semi-minor Axis (b)6.2832 sq units
1 units Semi-major Axis (a); 3 units Semi-minor Axis (b)9.4248 sq units
1 units Semi-major Axis (a); 5 units Semi-minor Axis (b)15.708 sq units
2 units Semi-major Axis (a); 1 units Semi-minor Axis (b)6.2832 sq units
2 units Semi-major Axis (a); 1.5 units Semi-minor Axis (b)9.4248 sq units
2 units Semi-major Axis (a); 2 units Semi-minor Axis (b)12.5664 sq units
2 units Semi-major Axis (a); 3 units Semi-minor Axis (b)18.8496 sq units
2 units Semi-major Axis (a); 5 units Semi-minor Axis (b)31.4159 sq units
3 units Semi-major Axis (a); 1 units Semi-minor Axis (b)9.4248 sq units
3 units Semi-major Axis (a); 1.5 units Semi-minor Axis (b)14.1372 sq units
3 units Semi-major Axis (a); 2 units Semi-minor Axis (b)18.8496 sq units
3 units Semi-major Axis (a); 3 units Semi-minor Axis (b)28.2743 sq units
3 units Semi-major Axis (a); 5 units Semi-minor Axis (b)47.1239 sq units
5 units Semi-major Axis (a); 1 units Semi-minor Axis (b)15.708 sq units
5 units Semi-major Axis (a); 1.5 units Semi-minor Axis (b)23.5619 sq units
5 units Semi-major Axis (a); 2 units Semi-minor Axis (b)31.4159 sq units
5 units Semi-major Axis (a); 3 units Semi-minor Axis (b)47.1239 sq units
5 units Semi-major Axis (a); 5 units Semi-minor Axis (b)78.5398 sq units
8 units Semi-major Axis (a); 1 units Semi-minor Axis (b)25.1327 sq units
8 units Semi-major Axis (a); 1.5 units Semi-minor Axis (b)37.6991 sq units
8 units Semi-major Axis (a); 2 units Semi-minor Axis (b)50.2655 sq units
8 units Semi-major Axis (a); 3 units Semi-minor Axis (b)75.3982 sq units
8 units Semi-major Axis (a); 5 units Semi-minor Axis (b)125.6637 sq units

Frequently Asked Questions

Common questions about Ellipse Area from Semi-Axes, formulas, and typical use cases.

What does the Ellipse Area from Semi-Axes calculator do?

It helps with estimating oval and elliptical surface area in design and manufacturing.

What formula does the Ellipse Area from Semi-Axes calculator use?

Ellipse area = π × a × b.

What inputs are valid?

Semi-axis lengths must be positive.

When would I use this?

estimating oval and elliptical surface area in design and manufacturing

Methodology and Review

This page combines a live calculator, precomputed reference values, and FAQ content from the same conversion definition to reduce mismatch between calculator output and lookup tables.

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For compliance-sensitive work, verify final values against project requirements, governing standards, and manufacturer documentation.