Numbers to Letters Converter

Instantly convert numbers to letters using A1Z26, NATO phonetic, Roman numerals, periodic table, and more.

Numbers to Letters. Quick conversions, right in your browser. A small toolbar extension for converting numbers into letters, words, Roman numerals, NATO code, or element symbols, without opening a tab or waiting on a page to load. This isn't the full online suite. It's the fast version: no sign-in, no saved history, no shareable links. Just paste numbers, get your result, copy it, done. Included conversions: A1Z26. 1=A through 26=Z. "8 5 12 12 15" becomes "HELLO." Reverse A1Z26. 1=Z through 26=A, for the flipped version of the cipher. NATO Phonetic Alphabet. Letters or numbers turned into Alpha, Bravo, Charlie, and so on. Roman Numerals. Numbers 1 through 3999 converted to Roman numeral form. 2026 becomes MMXXVI. Numbers to Words. Plain English spelling of numeric values. 125 becomes "one hundred twenty five." Periodic Table Symbols. Atomic number to element symbol. 1 becomes H, 6 becomes C, 8 becomes O. How it works: Type or paste, results appear as you go Accepts numbers split by spaces, commas, or line breaks Choose your separator and text case for the output Copy with one click or save as a text file Try it instantly with a built-in sample Privacy: Every conversion runs locally in your browser. Nothing is logged, stored, or sent anywhere. No account, no ads, free to use. Need more formats, like binary, hex, zodiac symbols, or saved/shareable conversions? The full toolkit lives at : https://numberstoletters.com