About ChartsAndCodes

ChartsAndCodes provides free, accurate reference charts, conversion tables, and code translators for crafts, trades, and everyday use. Every chart is designed to be clean, easy to read on any device, and print-friendly so you can keep a copy at your workbench, craft table, or desk.

Our Mission

We believe useful reference data should be free, fast, and accessible. No accounts, no paywalls, no app installs. Just open the page, find your answer, and get back to work. All tools run entirely in your browser — we never store your data.

What We Cover

• Codes & Ciphers — Morse code, ASCII, phonetic alphabet, and military time references
• Number Systems — Roman numerals, binary, hexadecimal, and number base converters
• Measurement — Torque conversions and measurement reference charts
• Craft & Fiber — Knitting needle sizes, crochet hook sizes, and yarn weight guides
• Trade & Workshop — Sheet metal gauges, wire gauges, lumber dimensions, and pipe thread sizes

Data Accuracy

All data in our reference charts is sourced from recognized industry standards and verified against multiple authoritative references including ANSI/ASME standards, NEC tables, the Craft Yarn Council specifications, and manufacturer documentation. If you spot an error, please let us know so we can correct it promptly.

Print-Friendly

Every chart page includes a print button that produces a clean, ink-friendly printout optimized for standard letter-size paper. Navigation, ads, and other non-essential elements are automatically hidden when printing.