NATO Phonetic Alphabet Converter
Spell a name, a booking reference or a registration number out loud so it cannot be misheard. Nothing is uploaded.
How to use it
- Type the word, name or reference into the box on the left.
- Read the result down the phone, one word at a time.
- Tick One per line if you are reading a long reference and want to keep your place.
Why the spellings look wrong
It is Alfa, not Alpha, and Juliett with two t's. Neither is a typo. The alphabet was agreed internationally, and it had to work for speakers of many languages over a poor radio link. Ph is not read as an f sound everywhere, so Alpha became Alfa. A French speaker would treat a single final t as silent, so Juliet gained a second one.
The numbers have the same history. Tick Aviation numbers and nine becomes niner, so it cannot be confused with the German nein; three becomes tree, because the th sound does not exist in many languages; four becomes fower and five becomes fife, both gaining clarity over a hiss of static. Outside aviation, ordinary number words are fine and are the default here.
The everyday use is simpler than radio work: reading a booking reference to an airline, a policy number to an insurer, an email address to someone typing it in. The pairs that go wrong most are M and N, B and D, S and F, and P and T — one word each and the ambiguity disappears.
Frequently asked questions
Why is it spelled Alfa and Juliett rather than Alpha and Juliet?
Both spellings are deliberate. Alfa avoids the ph, which is not read as an f sound in every language. Juliett carries a second t so that French speakers do not treat the final t as silent. The alphabet was designed to survive a bad radio link in any accent, and the odd spellings are part of that.
What are Tree, Fower and Niner?
They are the aviation pronunciations of three, four and nine. Nine becomes niner so it cannot be heard as the German nein, three loses the th sound that many speakers do not have, and four gains a syllable so it is not confused with for. Tick the aviation option to use them.
When is this actually useful?
Any time a letter matters and the line is bad: reading a booking reference or PNR to an airline, giving a policy or case number over the phone, dictating an email address, or confirming a vehicle registration. M and N, B and D, and S and F are the pairs that get misheard most.
Is my text sent anywhere?
No. The conversion happens in JavaScript inside your own browser. Nothing is uploaded and nothing is saved — close the tab and the text is gone.