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ISO 286 Fits & Tolerances | Engineering Database

Calculators / ISO 286 Fits & Tolerances

ISO 286 Fits & Tolerances

manufacturing

Calculates hole and shaft limits, clearance or interference, and tolerance zones for standard ISO 286 metric fits. Covers clearance, transition, and interference fits for hole-basis system.

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Nominal Diameter Mm*

Nominal diameter of the mating parts in millimeters. Must fall within one of the ISO 286 standard size ranges (1-500 mm). Deviations are looked up from the size bracket containing this value.

Tolerance Class

ISO 286 tolerance class in 'Hole/Shaft' notation (e.g. 'H7/g6', 'H7/p6'). Available classes: H11/c11 (loose running), H9/d9 (free running), H8/f7 (close running), H7/g6 (sliding), H7/k6 (transition), H7/p6 (light press), H7/s6 (force/shrink). If omitted, defaults to H7/g6 (sliding fit).

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Reference data

This calculator pulls live values from the following engineering reference tables in the database.

fits tolerances

About this calculator

ISO 286 Fits & Tolerances is part of the Engineering Database calculator suite. Each tool runs deterministic calculations against authoritative reference data and code-compliant methods, so results are reproducible and traceable to source standards.

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