Calculators & Conversions

Our convenient calculators & conversions make your time in the shop more efficient by helping you calculate surface feeds, revolutions per minute, feed rates, convert between inch and metric and more. We simplified these tools to provide you with faster results.

Click on a calculator name from the list below, enter your data, and let us handle the rest.

Metric / Inch Conversion
Surface Feet Per Minute (SFM)
SFM: 0.000
Revolutions Per Minute (RPM)
RPM: 0.000
Inches Per Revolution Feed Rate (IPR)
IPR: 0.000
Inches Per Minute Feed Rate (IPM)
IPM: 0.000
Tap to Drill Size (ANSI)
Fractional Drill Sizes
Wire Drill Sizes