Angle from dimensions
Two diameters and axial length determine both included and half angles.
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Taper angle and ratio calculator
Convert diameters, length and taper angle and get 1:n ratio plus percentage without confusing included and half angles.
Included and half angleDiameters D/dTaper ratio 1:nLocal calculations
NCTune CNC Toolbox
Unambiguous straight-taper geometry
The interface always separates included taper angle from the half setting angle. Solve for angle, small diameter or axial length.
Inverse calculation
Use angle and the remaining dimensions to solve for small diameter or taper length.
Taper ratio
Results include diameter change per length, 1:n notation and single-side slope.
FAQ
Frequently asked questions
Which angle is the primary result?
The included angle between both taper sides. Compound-slide or axis setup often uses half of this value.
What does a 1:n taper mean?
Diameter changes by one unit over n units of axial length.
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