Use this ellipse major axis calculator to quickly calculate major axis of ellipse using the semi-major axis. Perfect for ellipse axis formula tasks.
a = semi-major axis
Major axis is the full length along the longest diameter of the ellipse.
| Semi-major axis (a) | Major Axis |
|---|---|
| 2 | 4 |
| 3 | 6 |
| 5 | 10 |
| 10 | 20 |
| 20 | 40 |
1. Measure the semi-major axis (a).
2. Multiply by 2 to get the major axis.
This ellipse major axis calculator automatically computes results with up to six decimal places. Useful for students, engineers, and designers needing precise calculate major axis of ellipse results.
• The major axis is the longest line across the ellipse.
• It passes through both foci of the ellipse.
• Major axis is key in ellipse geometry calculations.
• Used in astronomy, engineering, and optics.
• Elliptical orbits depend on the major axis.