What is the NATO phonetic alphabet?

It is the international radiotelephony spelling alphabet that maps each letter to a distinct code word: A is Alpha, B is Bravo, C is Charlie, and so on to Z for Zulu. The words are chosen to sound clearly different over a noisy link.

How are digits handled?

Digits are spelled with the ICAO number words, so 9 becomes niner and 3 becomes tree. This matches how callsigns and reference numbers are read aloud alongside the letter words.

Why are letters joined with dashes?

Within a single word the code words are joined by dashes so the listener can see, and you can read, which letters belong together. A space then separates whole words, preserving the original word grouping.

Is the output case sensitive?

No. Input letters are uppercased before lookup, so Gera and GERA both produce Golf-Echo-Romeo-Alpha. The code words themselves are always shown in their standard capitalised form.

What happens to punctuation?

Punctuation and symbols that are not letters or digits are passed through unchanged. Only the 26 letters and 10 digits are translated; everything else, like an apostrophe or hyphen, stays as typed.

NATO Alphabet Encoder (Word Input)

The NATO phonetic alphabet replaces each letter with an unmistakable code word — Alpha, Bravo, Charlie — so spelling is reliable over radio or phone. This encoder converts a whole sentence, spelling every word letter by letter.

How it works

Each character is looked up in two tables and joined within a word by dashes:

A Alpha   B Bravo   C Charlie  D Delta   E Echo
F Foxtrot G Golf    H Hotel    I India   J Juliett
… Z Zulu
digits: 0 zero 1 one 2 two 3 tree 4 fower 5 fife
        6 six 7 seven 8 eight 9 niner

Letters are uppercased before lookup. Within a run of letters or digits the code words are joined with dashes; a space in the input becomes a space in the output, so word boundaries are preserved. Characters that are neither letters nor digits pass through unchanged.

Example and tips

GERA encodes to Golf-Echo-Romeo-Alpha, and “Gera 24” becomes Golf-Echo-Romeo-Alpha two-fower. Read each code word fully and pause between words — the value of the alphabet is that Bravo can never be mistaken for Delta the way the letters B and D can. Use it to read out reference numbers, names, and postcodes accurately the first time.