Metalworking Calculators
Free shop calculators from Sussex Tool & Supply — dial in speeds, feeds, tap drill sizes, run time, and labor cost. Pick a calculator to get started.
Simple Calculators
SFMSurface SpeedCutting speed at the tool from spindle RPM and diameter.Open →RPMSpindle SpeedRequired RPM from a target surface speed and diameter.Open →IPRFeed per RevInches per revolution from feed rate and spindle speed.Open →IPMFeed RateInches per minute from feed per rev and spindle speed.Open →IN³/MINRemoval RateCubic inches of stock removed per minute in turning.Open →
Specific Calculators
Time & Cost
PRODUCTIONProduction TimeRun time, downtime, and throughput for a part order.Open →LABORLabor CostTotal labor cost from run hours, rate, and crew size.Open →
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