True Position GD&T Tolerance Calculator
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This calculator calculates position tolerances utilizing principles and concepts withinASME Y14.5-2009 and ASME Y14.5M - 1994, Geometric Dimensioning and Tolerancing (GD&T).
For the equations behind this calculator, see:
Negative Tolerance numbers indicate out of tolerance condition.
This GD&T true position calculator will convert coordinate measurements to position tolerances. Two (2) inputs are required, See the application illustration at bottom of page.
The following are definitions for the elements:
Offset (X) - This is the difference between the basic dimension (Drawing) and the actual measurement of the produced part.
Offset (Y) - This is the difference between the basic dimension (Drawing) and the actual measurement of the produced part.
Calculated (ACTUAL) True Position - The calculated positional tolerance diameter zone.
Allowable True Position - This is the true position tolerance defined/required (drawing) .
(+) Excess Tolerance - Additional available positional tolerance.
(-) Excess Tolerance - Allowed positional tolerance exceed by given measurements .