Area of an Ellipse Calculator
Calculates the area of an ellipse from the measurements you enter. Use any unit, as long as all inputs use the same one.
Result
- Area
- 75.3982
How to use the area of an ellipse calculator
- Enter the semi-major axis.
- Enter the semi-minor axis.
- The results update as you type, or press Calculate.
- Read the area first, then the supporting figures below it.
Formula
πab
Worked example
For example, with these inputs:
- Semi-major axis: 6
- Semi-minor axis: 4
the calculator returns:
- Area: 75.3982
Background
Calculators are best used to check working rather than replace it, especially for exams where method marks count. Work the problem by hand first, then confirm with the calculator.
These calculations appear throughout the Singapore syllabus, from primary school percentages and fractions to secondary school algebra and geometry. Understanding the formula makes problem sums easier because you can recognise which quantity is missing.
Frequently asked questions
How does the area of an ellipse calculator work?
It applies this formula: πab
Can I use any units?
Yes, as long as every input uses the same unit. The answer will be in that unit (squared for areas, cubed for volumes).