Step-by-step instructions
- Enter or select Semi-major axis.
- Enter or select Semi-minor axis.
- Tap Calculate.
- Review the result shown directly below the calculator.
Ellipse Calculator
Calculate ellipse area and approximate circumference.
How to use the Ellipse Calculator
Calculate ellipse area and approximate circumference.
What the inputs mean
- Semi-major axis
- Enter the value requested by this field label.
- Semi-minor axis
- Enter the value requested by this field label.
Formula or calculation method
The calculator applies the standard mathematical relationship for the labeled inputs and returns the computed result automatically.
Example
Try entering realistic values for Semi-major axis and Semi-minor axis, then tap Calculate to see how the result changes.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.