Turning Surface Roughness Calculator

Cutting Feed (IPR)
Tool Nose Radius

Effortlessly determine surface roughness using our efficient calculator. Obtain precise results quickly through our robust roughness calculation tool. Give it a try today!

Surface roughness arises from machining, resulting in the unevenness of a surface and defining its texture. Our online turning surface roughness calculator is designed to gauge the roughness of a tool’s surface during turning operations.

Turning Surface Roughness formula

    \[Ra = \left(\frac{IPR_2}{T \cdot 24} \cdot 10^6\right) \cdot 1.11\]


  • Ra = Turning Surface Roughness
  • IPR = Cutting Feed (IPR)
  • T = Tool Nose Radius

A Turning Surface Roughness Calculator is a tool used to calculate the surface roughness of a workpiece that has been turned on a lathe. This calculator takes into account various parameters such as the cutting speed, feed rate, depth of cut, and the material properties of the workpiece and cutting tool. The output of the calculator is typically a value for the surface roughness, expressed in micrometers or other units of measurement. This information is useful for machinists and engineers who need to ensure that the finished workpiece meets the required specifications for surface finish. By adjusting the input parameters, the calculator can help optimize the turning process to achieve the desired surface finish while minimizing machining time and tool wear.

Turning Surface Roughness Calculator

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