AWG to mm converter

About This Tool

This tool converts AWG values to conductor diameters in millimeters, enabling metric documentation for electrical design, BOM creation, and CAD data. Conceptually, it maps a gauge number to a nominal diameter using the standard AWG relationship, then converts inches to millimeters. The workflow is deterministic: input an AWG integer, apply the formal formula, and output a numeric millimeter value with three-decimal precision. Users include electrical engineers, technicians, and procurement specialists who need metric diameters for insulation selection, connector fits, or compliance labeling. Unique value lies in a single, validated reference implementation that eliminates manual lookups and reduces errors in cross-unit spec sheets. Core features include input validation, explicit out-of-range handling, and a consistent 3-decimal formatting. Use cases range from BOM generation to CAD model updates and maintenance documentation. The tool supports numeric-only inputs and returns a concise metric diameter suitable for plug inserts, sleeve sizing, and connector planning. By standardizing the AWG-to-mm step, teams avoid discrepancies across documents and suppliers, improving reliability and traceability in electrical projects.

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