Phone Keypad Letter Converter

How to use

1. 1Pick a direction. Letters to digits is for vanity numbers like 1-800-FLOWERS. Digits to letters is for showing which letters share each digit on the keypad.
2. 2Type or paste your number into the input. Case does not matter, and spaces, dashes, parentheses, dots, and the plus sign are kept exactly as you typed them.
3. 3Read the output. In Letters to digits the dialable number is highlighted at the top with a Copy button, plus a per-character map that shows the digit each letter became.
4. 4Use the keypad reference card at the bottom as a quick lookup when picking or memorizing a vanity number for your business or campaign.

About this tool

Phone Keypad Letter Converter switches a vanity phone number between its spelled form (1-800-FLOWERS) and the digits you actually dial (1-800-356-9377). The mapping uses the ITU-T E.161 layout that every modern phone keypad inherits: 2 is ABC, 3 is DEF, 4 is GHI, 5 is JKL, 6 is MNO, 7 is PQRS, 8 is TUV, 9 is WXYZ, while 0 and 1 carry no letters. In Letters to digits mode the tool walks the input character by character and replaces each A-Z letter with its keypad digit, preserving every space, dash, parenthesis, plus sign, and existing digit so the formatting of the original number stays intact. In Digits to letters mode it shows a per-position breakdown of the letters that share each digit's key, which is exactly what you want when you are asking what a phone number could spell or when you are picking a memorable vanity number for a campaign. Stats show how many letters were converted, how many digits were already dialable, and how many formatting characters were preserved, and the live keypad reference card below the converter gives you the full mapping at a glance. Letters with diacritics (such as a-with-acute) are not on the standard keypad and are flagged so you can strip them before dialing. The conversion runs entirely in your browser, so phone numbers you paste are never uploaded.

Free to use. Works in your browser. No signup, no login.