GD&T Datum Shift & Virtual Condition Calculator

Compute Virtual Condition ($VC$), Resultant Condition ($RC$), Maximum Material Boundary (MMB), and available datum shift / rocking allowance per ASME Y14.5.

Controlled Feature of Size

Feature Type:

Nominal Size (mm):

Plus Tol (+mm):

Minus Tol (-mm):

Feature Geometric Tolerance at MMC (Ø mm):

Datum Feature of Size (e.g. Datum B)

Datum Feature Type:

Datum Modifier:

Datum MMC Size (mm):

Datum Produced Actual (mm):

Functional Boundaries & Datum Shift

Virtual Condition (VC)

Available Datum Shift

Resultant Condition (RC)

Extreme outer boundary

Datum Simulator Gage Size

Functional gage pin/bushing

Gaging & Assembly Interpretation

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GD&T Datum Shift & Virtual Condition Calculator

Controlled Feature of Size

Datum Feature of Size (e.g. Datum B)

Functional Boundaries & Datum Shift

Frequently Asked Questions