SFM to RPM Calculator

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Posted by Dinesh on

Online speeds / feeds conversions calculator helps to convert SFM (Surface Feet per Minute) to RPM (Revolutions Per Minute) units.

Surface Feet per Minute to Revolutions Per Minute Calculation

Formula:

RPM = [SFM × (12 ÷ π)] / D

where,
D = Workpiece diameter
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