Speed and Feed Calculator


! These calculations are based upon theoretical values and are only intended for planning purposes. Actual results will vary. No responsibility from Kennametal is assumed.

Surface Feet Per Minute (SFM)     

    Tool Diameter:     in.       
    Revolutions per minute:     rpm

    Resulting surface feet per minute:     SFM


Inches Per Minute (IPM)     

    Revolutions per minute:     rpm       
    Feed:     ipr

    Resulting inches per minute:     IPM

Revolutions per Minute (RPM)     

    Tool Diameter:     in.       
    Surface feet per minute:     sfm

    Resulting Revolutions Per Minute (RPM):     RPM


Calculate Metric to Inches

       mm per rev or mm              in / rev. or in.

Calculate Inches to Metric

       in / rev. or in.              mm per rev or mm