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NATO Phonetic Alphabet Converter

Spell words with the NATO alphabet: Alfa, Bravo, Charlie

Letters and digits are spelled out; other characters are kept as they are.

Runs in your browser. Nothing is uploaded.

About the NATO Phonetic Alphabet Converter

The NATO phonetic alphabet gives each letter a clear code word, so that letters are not mistaken on a bad phone line or a radio: A is Alfa, B is Bravo, C is Charlie. This converter spells out any text with the code words, and can also decode a list of code words back to text. You can choose the aviation way of saying digits and the separator between words. Type your text, or the code words you want to decode and the NATO phonetic alphabet appears at once, with a few related figures underneath, and you can copy the result with one tap. The sums run in your browser, so nothing you enter is uploaded.

Updated October 2026

How to use the NATO Phonetic Alphabet Converter

  1. 1Enter your text, or the code words you want to decode.
  2. 2Pick the units or options from the menus if the NATO phonetic alphabet tool offers them.
  3. 3Read the NATO phonetic alphabet in the large result box.
  4. 4Look at the extra rows for related figures.
  5. 5Press Copy result to keep the answer.

When you need the NATO phonetic alphabet

Call centres use it to spell names, codes and registration numbers. Pilots, sailors, radio operators and the emergency services use it as standard. You can use it whenever you have to spell something clearly over the phone.

Decoding accepts both Alfa and Alpha, Juliett and Juliet, and the aviation digit words. Words it does not know are shown as a question mark and counted, so you can see what to fix.

    How the NATO phonetic alphabet is worked out

    Each letter becomes its code word, and each digit becomes its spoken name. In the aviation style, 3 is Tree, 4 is Fower, 5 is Fife and 9 is Niner to avoid confusion. Tezmy Tools 24 becomes Tango Echo Zulu Mike Yankee / Tango Oscar Oscar Lima Sierra / Two Four. SOS 911 in the aviation style becomes Sierra Oscar Sierra / Niner One One.

    Every answer on this page comes from that one rule, so you can check any result by hand with a calculator. The figures shown underneath, such as other units, are conversions of the same answer.

    • Text to code words and back
    • Aviation digits
    • Accepts Alpha and Alfa

    Mistakes to avoid with NATO phonetic alphabet

    The official spellings are Alfa and Juliett, to help non-English speakers pronounce them, but many people say Alpha and Juliet. Punctuation is kept as it is. The code words are not case-sensitive when decoding.

      On phone and computer

      On a phone, type into the boxes one after another and read the NATO phonetic alphabet underneath; Copy result puts it on the clipboard for a message or a note. On a computer the inputs sit on the left and the answer on the right, so you can change one figure and watch the NATO phonetic alphabet move. The nato phonetic alphabet converter works the same on both. For other ways to spell a message, Morse Code Translator uses dots and dashes, Binary Translator uses ones and zeros, Text to Speech reads the result out loud, and Case Converter fixes capitals before you start.

        Features

        • Spell names clearly
        • Use the slash for word breaks
        • Unknown words show as ?
        • Clear messages when the NATO phonetic alphabet inputs make no sense
        • Copy the result with one tap
        • Private: nothing is uploaded

        Frequently asked questions

        How do I calculate NATO phonetic alphabet?

        Each letter becomes its code word, and each digit becomes its spoken name. In the aviation style, 3 is Tree, 4 is Fower, 5 is Fife and 9 is Niner to avoid confusion. Tezmy Tools 24 becomes Tango Echo Zulu Mike Yankee / Tango Oscar Oscar Lima Sierra / Two Four. SOS 911 in the aviation style becomes Sierra Oscar Sierra / Niner One One.

        What is the formula for NATO phonetic alphabet?

        Each letter becomes its code word, and each digit becomes its spoken name. In the aviation style, 3 is Tree, 4 is Fower, 5 is Fife and 9 is Niner to avoid confusion. The nato phonetic alphabet converter applies it exactly and rounds only the displayed answer to six significant figures.

        What are the NATO code words?

        Alfa, Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliett, Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu.

        Why Tree, Fower, Fife and Niner?

        They are spelling variants chosen so that numbers stay clear over noisy radio. Niner avoids confusion with the German word nein.

        Is it the same as the ICAO alphabet?

        Yes. NATO adopted the ICAO spelling alphabet, so the two names are used for the same list.

        Is this nato phonetic alphabet converter free and private?

        Yes. It is free, needs no account and runs in your browser, so the numbers you type are not uploaded or stored.

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