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Every page on this site, listed once, as a plain link. There are 30 pages in total: the socket conversion calculator, twelve conversion charts, four site pages, and thirteen translated editions of the homepage.

Main Tool

Metric to Standard Socket Conversion Chart & Calculator
The two-way calculator, the full 47-size conversion chart, and an interchangeability rating for every metric and SAE socket pairing.

Conversion Charts & Calculators

Twelve reference pages covering wrenches, bolts, threads, drills and socket types.

Wrench Size Chart
Metric to SAE wrench sizing, separate from socket tolerances
SAE to Metric Converter
Convert standard fractional sizes back to millimetres
Bolt Size Chart
Bolt head dimensions matched to the socket that fits them
Drill Size Chart
Number, letter, fractional and metric drill bit sizes
Tap Drill Chart
Correct drill size before cutting metric or SAE threads
Thread Size Chart
Metric, UNC, UNF and Whitworth thread standards compared
Impact Socket Sizes
Impact-rated socket sizing for 1/4 through 3/4 inch drives
Deep Socket Sizes
Deep well socket lengths for recessed fasteners
Drive Size Adapters
Stepping between 1/4, 3/8, 1/2 and 3/4 inch drive sizes
mm to Inches
General millimetre to fractional inch conversion
Fraction to Decimal
Wrench fraction to decimal inch reference
Allen Wrench Sizes
Metric and SAE hex key equivalents

Site Pages

Homepage by Language

The socket conversion calculator and its full chart are translated into fourteen languages. The conversion charts listed above are English only.

This page exists to give search engines a single unambiguous crawl path to everything on the site. Every link above is a real anchor with a trailing slash, resolving to a page that returns HTML without requiring JavaScript. There is a machine-readable XML sitemap at the same coverage for crawlers that prefer it. If you are looking for a specific conversion rather than a specific page, the socket conversion calculator is the fastest starting point.