NATO Phonetic Alphabet Speller

What this tool does

When you read a name or a reference code aloud, similar-sounding letters cause mistakes: B and D, M and N, or S and F over a weak line. A spelling alphabet removes the ambiguity by saying a whole word instead of the letter — Alfa, Bravo, Charlie — and the listener writes down the first letter of each word. This tool takes text and produces that spoken form, one word of input per line, so a surname and a booking reference stay separate and easy to read back.

It is the same table used by pilots, air traffic controllers, ships and emergency services, and it is equally useful off the radio: dictating an email address, reading a serial number to a support agent, confirming a postal code, or explaining a difficult surname at a border desk. Type or paste the text, read the words back, and the other person can reconstruct it exactly, whatever the accent or line quality.

Method

Each Latin letter and digit is replaced by its fixed word from the ICAO alphabet. The input is uppercased first, so case does not matter, and whitespace is treated as a break: every word in your input becomes its own line in the output. Characters with no entry, such as accented letters or punctuation, are passed through unchanged rather than dropped, so nothing in your text quietly disappears.

Letter	Word	Letter	Word
A	`Alfa`	N	`November`
B	`Bravo`	O	`Oscar`
C	`Charlie`	P	`Papa`
D	`Delta`	Q	`Quebec`
E	`Echo`	R	`Romeo`
F	`Foxtrot`	S	`Sierra`
G	`Golf`	T	`Tango`
H	`Hotel`	U	`Uniform`
I	`India`	V	`Victor`
J	`Juliett`	W	`Whiskey`
K	`Kilo`	X	`X-ray`
L	`Lima`	Y	`Yankee`
M	`Mike`	Z	`Zulu`

Example

Input	Spelled out
SOS	`Sierra Oscar Sierra`
AB12	`Alfa Bravo One Two`
Anna Smith	`Alfa November November Alfa` `Sierra Mike India Tango Hotel`

Frequently asked questions

What is the NATO phonetic alphabet?

A spelling alphabet that replaces each letter with a whole word — Alfa for A, Bravo for B — so a letter survives a bad telephone line or radio channel where the letter name alone would be misheard.

Is it really "NATO" spelling?

It is the ICAO radiotelephony spelling alphabet, adopted by NATO and most aviation and maritime services. "NATO phonetic alphabet" is the common name, but the same table is used far beyond NATO.

Why Alfa and Juliett, not Alpha and Juliet?

The spellings were fixed so that speakers of different languages would pronounce them correctly: "Alfa" avoids the "ph" that is not pronounced as f everywhere, and the double t in "Juliett" stops a French speaker dropping the final t.

How are numbers spoken?

Digits use One, Two, Three and so on. Aviation adds a few special forms for clarity, such as Niner for nine to avoid confusion with the German "nein" and Fife for five.

Do I have to say every word?

No. Speakers usually spell only the unclear part — a name, a callsign, a reference code — and then read the whole word normally. Spelling everything out is slow and is reserved for genuinely critical data.

Is the output a single line?

Each word of your input becomes its own line, so a name and a code stay visually separate. Copy the result into a script, a note or a call sheet as you need it.

Go deeper

Longer explanations of the problems this tool solves:

Sources

ICAO, Annex 10 — Aeronautical Telecommunications, Volume II: the radiotelephony spelling alphabet.
The same table as adopted by NATO and used in maritime and emergency radio procedure.