Instantly convert numbers to letters using A1Z26, NATO phonetic, Roman numerals, periodic table, and more.
Users
5
+5 in 30 days
Rating
5.0 / 5
+5.00 in 30 days
Ratings
1
+1 in 30 days
Store rank
#244K
#204K among extensions
Version
1.0.0
updated 13 Sep 2026
Users
monthly, 1 months
Latest, 16 Oct 2026:5 usersMove the mouse over the chart for any month
Ratings count
monthly, 1 months
Latest, 16 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Numbers to Letters Converter
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