// Voice Procedure Terminal
Spell anything in the NATO phonetic alphabet.
Type a name, a callsign, a serial number — anything. It comes back as clear code words you can read straight over the radio, with pronunciation, Morse, and an audio readout.
When a soldier reads a serial number over a crackling radio, "B" and "D" sound almost identical. So does "M" and "N." Get one letter wrong and you call coordinates into the wrong grid square, log the wrong part number, or send a convoy down the wrong road. The military alphabet exists to make that mistake impossible.
It works by replacing each letter with a whole word — Bravo instead of "B," Delta instead of "D." Two letters that share a single sound almost never share their opening syllables, so even through static and engine noise the letter comes through clean. Here's the complete reference: the chart with pronunciation and Morse, the numbers, how to use it, the history behind it, and the variants you'll meet outside the military.
The NATO Phonetic Alphabet
The official ICAO/NATO standard, A through Z. Each card shows the code word, the agreed pronunciation, and its Morse equivalent. Tap any card to hear it.
Why "Alfa" and "Juliett" are spelled that way
These aren't typos. "Alpha" with a ph gets misread by speakers of languages where ph isn't an "f" sound, and "Juliet" with one t can fall silent in French. The deliberately odd spelling forces the correct pronunciation no matter who's reading it — which is the whole point of an international standard.
Numbers & Morse Code
Digits are spoken plainly, with a handful altered so they survive a noisy channel — "tree" for 3, "fife" for 5, "niner" for 9. Tap to hear the spoken digit and its Morse tone.
Zero is always "zero" — never "oh" — so it can't be confused with the letter O.
How to Actually Use It
The rule is simple: say the letter, then its code word, for anything that has to be exactly right. You don't spell every word this way — the skill is knowing when the channel is bad enough or the stakes high enough to switch into it.
Spelling a name
"My last name is Hayes — Hotel, Alfa, Yankee, Echo, Sierra."
Confirming one tricky letter
"That's part 14B — B as in Bravo, not D as in Delta."
Reading a callsign or reference
"Confirmation Kilo-Romeo-Seven-Two — Kilo, Romeo, Seven, Two."
Try it yourself
Type your name or any reference into the converter at the top of this page — it spells it out in code words and reads it aloud so you can hear exactly how it should sound.
NATO vs. Police & Other Alphabets
NATO isn't the only system, and mixing them up is the most common mistake people make. US police use the APCO/LAPD set — Adam, Boy, Charles — a completely different list doing the same job. Aviation rides on NATO; older alphabets still surface in records and radio history. All that matters is that both people on the line use the same one. Switch between them below.
| Ltr | NATO | Compare |
|---|
A Short History of the Military Alphabet
The need is older than radio. As soon as people spelled words over a wire, they reached for stand-in words to separate letters that sound alike. The hard part was getting everyone to agree on the same words.
From "Able Baker" to one global standard
Early U.S. versions used homely, all-American words — Able, Baker, Charlie, Dog, Easy, Fox. During World War II, American and British forces leaned on the "Able Baker" alphabet to spell to each other in the field. It worked for English speakers but fell apart across allied languages. After the war, the International Civil Aviation Organization fixed it properly: linguists ran trials across many native languages to find code words that stayed recognizable in a French, Spanish, or Portuguese mouth as readily as an English one. The result — Alfa through Zulu — was adopted in the mid-1950s and taken up by NATO, which is why it's often called the NATO alphabet. Its formal name is the International Radiotelephony Spelling Alphabet (IRSA), and it has stayed essentially unchanged since. That's its whole strength: a standard only works if nobody keeps editing it.
Where it's used now
Far beyond the battlefield. Pilots and air traffic control, emergency services, ham radio operators, shipping, and call-centre staff confirming a booking reference all reach for it. Any time someone says "that's P as in Papa," they're using the military alphabet — usually without naming it.
How the letters changed over time
| Ltr | 1913 | 1927 | World War II | 1957–Present |
|---|
Only Charlie, Mike, Victor, and X-ray carried straight through from the wartime alphabet into the modern one. Everything else was reworked for clarity across languages.
Common Military Alphabet Phrases
Because every code word is short and distinct, the alphabet doubles as shorthand. A few have escaped into everyday speech.
Bravo Zulu
"Well done" — a naval signal (BZ) that became a standard way to say good job.
Oscar Mike
"On the move."
Charlie Mike
"Continue mission."
Whiskey Tango Foxtrot
Exactly what it spells.
Common Questions
Is it "Alpha" or "Alfa"?
The official ICAO and NATO spelling is Alfa, alongside Juliett with two t's. These spellings exist so that speakers of any language pronounce them correctly. "Alpha" is the everyday English variant and is widely understood, but "Alfa" is the standard on the books.
Is the military alphabet the same as the NATO alphabet?
Yes. "Military alphabet," "NATO alphabet," "NATO phonetic alphabet," and "International Radiotelephony Spelling Alphabet" all refer to the same Alfa-to-Zulu list.
What's the difference between the NATO and police alphabets?
NATO (Alfa, Bravo, Charlie…) is the international standard used by aviation and most militaries worldwide. US police forces typically use the APCO/LAPD set instead — Adam, Boy, Charles, David — which grew out of American radio practice. Both do the same job; they just use different code words.
How do I spell my name in the military alphabet?
Type it into the converter at the top of the page. It will return each letter as its code word, show the pronunciation, and read it aloud so you can practise saying it the way it sounds on a radio.
Do the numbers change too?
Mostly they're spoken as normal digits, but a few are altered for clarity over a noisy channel: 3 → "tree", 4 → "fower", 5 → "fife", 9 → "niner". Zero is always "zero," never "oh."
Do pilots use this too?
Yes — civil aviation uses the identical ICAO alphabet, which is why it spread worldwide. Air traffic control, the military, and shipping all share one standard.