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Guides to letters, numbers, and ciphers

Practical articles on converting letters to numbers, understanding A1Z26, and using alphabet codes in puzzles and learning.

Reference July 15, 2026

Understand ASCII values for uppercase and lowercase letters and how they differ from A1Z26.

Comparison July 15, 2026

A clear comparison of the A1Z26 and A0Z25 letter-to-number systems.

Puzzles July 15, 2026

Discover how letter-to-number systems appear in escape rooms, treasure hunts, and word puzzles.

Examples July 15, 2026

A collection of worked letter-to-number conversion examples across names, words, and phrases.

Cipher July 15, 2026

Learn what the A1Z26 cipher is, how it works, and why it remains a widely used letter-to-number system.

Guide July 15, 2026

A clear, step-by-step guide to converting letters to numbers manually and with a free online tool, including worked examples.