NATO phonetic alphabet converter
This tool turns any text into its NATO phonetic alphabet equivalent. Type a name, password, postcode, or call sign and each letter is replaced by the standard code word — Alfa, Bravo, Charlie, Delta — so it can be read aloud without confusion over a radio or phone.
How it works
The converter uses the International Radiotelephony Spelling Alphabet adopted by NATO and the ICAO. There is a fixed one-to-one mapping from each of the 26 letters to a code word and from each of the 10 digits to its spoken number word. Input is matched case-insensitively, so both g and G produce Golf. Spaces are surfaced as the literal token (space) so word boundaries remain obvious, and unknown symbols pass straight through.
Example and notes
The text Gera 42 becomes Golf Echo Romeo Alfa (space) Four Two. This is exactly how you would read a confirmation code over the phone to remove any doubt about whether you said B or P.
The alphabet uses deliberately distinct spellings — Alfa not Alpha, Juliett with two t’s, and X-ray with a hyphen — to keep pronunciation unambiguous across languages. It is widely used in aviation, the military, emergency services, and customer-support call centres.