Milling Calculators

Widgets

Milling Speed and Feed Calculator

Tool diameter (in):			Number of teeth:


Feed per tooth (IPT)	×	Number of teeth	=	Cutting feed (IPR)
Cutting speed (SFM) × 12	÷	Tool diameter (in) × π	=	Spindle speed (RPM)
Cutting feed (IPR)	×	Spindle speed (RPM)	=	Feed rate (IPM)

Cut length (in)

÷

Feed rate (IPM)

=

Cut time (min)

Milling Horsepower Calculator

Feed rate (IPM)

×

Radial depth of cut (in)

×

Axial depth of cut (in)

=

Material removal rate (in³/min)

Material removal rate (in³/min)	×	Unit power (hp/in³/min)	=	Spindle horsepower (hp)
Spindle horsepower (hp)	÷	Machine efficiency (%) / 100 / 100	=	Motor horsepower (hp)
Spindle horsepower (hp) × 63,030 × 63,030	÷	Spindle speed (RPM)	=	Spindle torque (in∙lb)

Milling Step-over Distance Calculator

Tool diameter (in):
Step-over distance (in):
Scallop height (in):

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