Calculators

1) Click Reset  2) Enter all but one value  3) Click Compute

Calculate Surface Feet Per Minute   SFM = (Pi * Dia * RPM) / 12  SFM = Surface Feet Per Minute  Dia = Diameter (inches)  RPM = Revs Per Minute

Dia  RPM  SFM

Convert Between Inches & Millimeters  .03936" = 1mm     25.4mm = 1"

Inches  Millimeters

Convert From Fraction to Decimal  (Does not go from decimal to fraction)

Fraction  Decimal

Calculator Java scripts courtesy of The Machinists' Exchange On-line. © The Machinists' Exchange On-line.  Used with permission.