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Machining / Geometry
Taper Calculator
Relate large and small diameters, axial length, taper rate and centreline angle.
Taper geometry
Calculated taper
Taper per unit length0.1 : 1
5.7248° included angle
- Axial length
- 100 mm
- Half-angle
- 2.8624°
- Included angle
- 5.7248°
- Diameter change per length
- 0.1
Angles are measured from the centreline. “Taper per unit length” is total diameter change divided by axial length; drawing conventions can instead quote taper as 1:n.