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3D Print Line Width Calculator
Translate a nozzle size and chosen extrusion-width ratio into a clear line-width target before you tune walls or infill.
How the calculation works
Line width = nozzle diameter × width ratio. Approximate wall thickness = line width × perimeter count.
How to use this result
This is a geometry helper, not a flow-limit guarantee. Very wide lines may need a lower speed or higher volumetric-flow capacity; very narrow lines can affect strength and consistency.
Example
A 0.4 mm nozzle at 112% targets a 0.448 mm line, which three simple adjacent walls approximate as 1.344 mm.