Machinist Calculator has been developed to quickly solve common machine shop math problems such as trigonometry, speeds and feeds, bolt circles, and much more. Get your free demo now.

Quickly calculate speeds and feeds for drills, milling cutters, and lathe workpieces.


  • Calculate between RPM and feet per minute or meters per minute
  • Calculate between feed per rev and feed per minute in inches or mm
  • Calculate tapping feeds for CNC machines
  • Calculate drill point and countersink depths
  • Drill charts
  • Material list containing starting cutting speeds for over 200 materials.
  • Convert values shown between Inch and Metric measurements.

This application opens ready to use the measuring system last used.

Speed and feed calculations can also be found in the Machinist's Calculator for AndroidAdroid OS, Machinist's Calculator for Apple iOSApple iOS , Machinist's Calculator for BlackBerryBlackBerry and PDA versions of the Machinist's Calculator.

Speeds and Feeds Calculator
Machining Calculations available as a separate desktop app: go to this page for details.

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