ISO HOLE TOLERANCE CALCULATOR

Hole tolerance calculator to find preferred hole tolerances according to ISO 286-1 and ANSI B4.2 metric standards.

Hole Tolerance Calculator:

INPUT PARAMETERS
Parameter Value Unit
Nominal Size mm
Hole Tolerance ---
 




Note : Use dot "." as decimal separator.

 

RESULTS
HOLE
Parameter Value Unit
Designation --- ---
Hole Upper Deviation ---  μm (0.001mm)
Hole Lower Deviation --- μm (0.001mm)
Maximum Hole Size --- mm
Minimum Hole Size --- mm

Reference:

  • ISO 286-1 (2010) Geometrical product specifications (GPS) - ISO code system for tolerances on linear sizes - Part 1: Basis of tolerances, deviations and fits
  • ISO 286-2 (2010) Geometrical product specifications (GPS) - ISO code system for tolerances on linear sizes - Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts
  • ANSI/ASME B4.2 (1978) Preferred Metric Limits and Fits