Milling Formula Interactive Calculator

 
D - Cutter diameter Z - Number of teeth in cutter
DOC - Depth of cut WOC - Width of cut
SURFACE FEET PER  MINUTE (SFM)
Enter RPM Enter D
X X π/12 =
REVOLUTIONS PER MINUTE (RPM)
Enter SFM Enter D
X (12/ π ) / =
INCHES PER REVOLUTION FEED RATE (IPR)
Enter IPM Enter RPM
/ =
INCHES PER MINUTE FEED RATE (IPM)
Enter RPM Enter IPT Enter Z
X X =
INCHES PER TOOTH FEED RATE (IPT)
Enter IPM Enter RPM Enter Z
/ / =
CUBIC INCHES PER MINUTE METAL REMOVAL RATE (in³/min)
Enter RPM Enter DOC Enter WOC Enter IPT Enter Z
X X X X =



Turning Formula Interactive Calculator

D - Workpiece diameter at machining point
DOC - Depth of cut
rad - nose radius of insert
SURFACE FEET PER MINUTE (SFM)
Enter RPM Enter D
X X π/12 =
REVOLUTIONS PER MINUTE (RPM)
Enter SFM Enter D
X (12/π ) / =
INCHES PER REVOLUTION FEED RATE (IPR)
Enter IPM Enter RPM
/ =
INCHES PER MINUTE FEED RATE (IPM)
Enter RPM Enter IPR
X =
CUBIC INCHES PER MINUTE METAL REMOVAL RATE (in³/min)
Enter RPM Enter IPR Enter DOC
X X =
Ra FINISH IN MICROINCHES µ in. (theoretical estimate only, invalid for round or wiper-style inserts)
Enter IPR Enter rad
( ² / ( 8 X ) ) X 333,333 =
RMS  ROOT MEAN SQUARE IN MICROINCHES µ in. (theoretical estimate only, invalid for round or wiper-style inserts)
Enter IPR Enter rad
( ( ² / ( 8 X ) ) / 3 ) X 370,000 =