Ellipse Calculator
Ellipse Calculator lets you ellipse area is πab and perimeter uses Ramanujan’s approximation. Enter your own values or load the worked example.
- Copy or download the computed result
- Adjust semimajor radius
- See the processing method and limits
Method and calculation
Ellipse area is πab and perimeter uses Ramanujan’s approximation.
Inputs and settings
Ellipse Calculator accepts Semimajor radius (minimum 0.000001); Semiminor radius (minimum 0.000001).
Worked example
Ellipse Calculator example — Semimajor radius: 6; Semiminor radius: 4. Computed output: { "area": 75.39822368615503, "approximatePerimeter": 31.730879178502466 }
Output and limitations
Ellipse Calculator: Use finite inputs. Results use double-precision arithmetic.
Technical references: JavaScript numerical operations
Ellipse Calculator FAQs
Ellipse Calculator applies the following rule to your input: Ellipse area is πab and perimeter uses Ramanujan’s approximation. The worked example on this page uses the same processor as the result button.
Ellipse Calculator has these boundaries: Use finite inputs. Results use double-precision arithmetic. Start by checking the semimajor radius field against the units or format shown.
Ellipse Calculator provides this sample: { "area": 75.39822368615503, "approximatePerimeter": 31.730879178502466 }. Use the sample button to reproduce it, then replace the inputs with your own values.