Ellipse Area Calculator
Compute the area of an ellipse: A = πab.
Input Data
Half of the long axis.
Half of the short axis.
Results
47.1239
Ellipse area = πab = 47.1239.
At a glance:Ellipse area A = πab where a, b are the semi-major and semi-minor axes; a=b=r gives the circle area πr².
Formula
A = πab.
How to Use
- Enter semi-major axis a and semi-minor axis b.
- The tool returns area A.
Case Studies
a=5, b=3 → 47.12
A = π·15 ≈ 47.12.
FAQ
Versus circle?
A circle is the special case a=b.
Circumference?
See ellipse-circumference.
Related Tools
References
Content reviewed by the Calculatorism editorial team. Results are for reference only; please refer to the relevant authorities for the official figures.