calc

inch mm

Feed & Speed Calculator

--- calculate RPM or Surface Speed ---

--- calculate RPM (inch) ---

Enter surface speed (feet/min):

Enter cutter diameter (inch):



RPM =

--- calculate Surface Speed (inch) ---

Enter rpm (revolutions/min):

Enter cutter diameter (inches):



Surface Speed =

--- calculate RPM (metric) ---

Enter surface speed (m/min):

Enter cutter diameter (mm):



RPM =

--- calculate Surface Speed (metric) ---

Enter rpm (revolutions/min):

Enter cutter diameter (mm):



Surface Speed =

--- calculate Feedrate or Feed/Tooth ---

--- calculate Feedrate (inch) ---

Enter rpm (revolutions/min):

Enter feed/tooth (inches):

Enter number of teeth:



Feedrate =

--- calculate Feed/Tooth (inch) ---

Enter rpm (revolutions/min):

Enter feedrate (in/min):

Enter number of teeth:



Feed/Tooth =

--- calculate Feedrate (metric) ---

Enter rpm (revolutions/min):

Enter feed/tooth (mm):

Enter number of teeth:



Feedrate =

--- calculate Feed/Tooth (metric) ---

Enter rpm (revolutions/min):

Enter feedrate (mm/min):

Enter number of teeth:



Feed/Tooth =

--- calculate Tapping feedrates ---

--- Tapping feedrate (rpm, threads/inch known) ---

Enter spindle rpm (revs/min):

Enter no. threads/inch:



Feedrate =

--- Tapping feedrate (rpm, pitch known) ---

Enter spindle rpm (revs/min):

Enter pitch = width of one thread (mm):



Feedrate =

--- calculate Stepover distance or Scallop height ---


--- Cutter Stepover (radius, scallop height known) (inch) ---

Enter cutter radius (inch):

Enter desired scallop height (inch):



Stepover dist =

--- Scallop Height (radius, stepover known) (inch) ---

Enter cutter radius (inch):

Enter stepover distance (inch):



Scallop height =

--- Cutter Stepover (radius, scallop height known) (metric) ---

Enter cutter radius (mm):

Enter desired scallop height (mm):



Stepover dist =

--- Scallop Height (radius, stepover known) (metric) ---

Enter cutter radius (mm):

Enter stepover distance (mm):



Scallop height =

Enter radius:
Enter step height:
Calc #1
Calc #2