Taper ratio () is the ratio of the chord length at the wingtip to the chord length at the wing root. It provides insights into the geometric shape of the wing, specifically how the width of the wing varies along its span. The taper ratio is a dimensionless quantity. The formula to calculate Taper ratio as follows:
Where:
- is the chord length at the wingtip in m.
- is the chord length at the wing root in m.