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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:
"Geometric Boundaries"
Interpretation and Application of
Geometric Dimensioning and Tolerancing

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Negative Tolerance numbers indicate out of tolerance condition.

This 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 .

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