Morse Code Alphabet A to Z — All 26 Letters with Audio, Chart & Quiz
Every letter A to Z with its dot-dash code, NATO phonetic alphabet, mnemonic, signal pattern, and audio. Includes mirror pairs, Koch learning order, and a full practice quiz — the complete alphabet reference.
Morse Code Alphabet — All 26 Letters
The ITU international Morse code alphabet assigns every letter a unique sequence of dots and dashes from 1 signal (E, T) to 4 signals (B, C, F, H, J, L, P, Q, V, X, Y, Z). The most common English letters got the shortest codes — a deliberate design from Samuel Morse based on letter frequency in print. Filter by signal length or click any card to hear it.
| Letter | NATO Phonetic | Morse Code | Pattern | Signals | Play |
|---|---|---|---|---|---|
| A | Alpha | .- | 2 | ||
| B | Bravo | -... | 4 | ||
| C | Charlie | -.-. | 4 | ||
| D | Delta | -.. | 3 | ||
| E | Echo | . | 1 | ||
| F | Foxtrot | ..-. | 4 | ||
| G | Golf | --. | 3 | ||
| H | Hotel | .... | 4 | ||
| I | India | .. | 2 | ||
| J | Juliet | .--- | 4 | ||
| K | Kilo | -.- | 3 | ||
| L | Lima | .-.. | 4 | ||
| M | Mike | -- | 2 | ||
| N | November | -. | 2 | ||
| O | Oscar | --- | 3 | ||
| P | Papa | .--. | 4 | ||
| Q | Quebec | --.- | 4 | ||
| R | Romeo | .-. | 3 | ||
| S | Sierra | ... | 3 | ||
| T | Tango | - | 1 | ||
| U | Uniform | ..- | 3 | ||
| V | Victor | ...- | 4 | ||
| W | Whiskey | .-- | 3 | ||
| X | X-ray | -..- | 4 | ||
| Y | Yankee | -.-- | 4 | ||
| Z | Zulu | --.. | 4 |
Mirror Pairs — Learn Two for the Price of One
Ten letter pairs in Morse are exact mirror images of each other — swap every dot for a dash and vice versa. Learn one side of each pair and the other is free. Click any pair card to hear both letters back-to-back.
Koch Learning Order — The Proven Way to Learn
The Koch method — developed by German psychologist Ludwig Koch in 1935 — is the most effective way to learn Morse. You learn at full target speed from the first lesson, starting with just two letters. Add one letter at a time once accuracy reaches 90%. This builds true ear recognition rather than conscious decoding.
| Step | Add Letter | Full Set So Far | Why This Order |
|---|---|---|---|
| 1 | K M | K M | Most distinctive sounds — dash-dot-dash and dash-dash |
| 2 | R | K M R | Symmetric dot-dash-dot — contrasts well with K and M |
| 3 | S | K M R S | Three dots — very distinct from dashes in K and M |
| 4 | U | K M R S U | Adds dot-dot-dash rhythm contrast |
| 5 | A P T | K M R S U A P T | Short common letters — builds core vocabulary fast |
| 6 | L | ...K M R S U A P T L | Common letter — adds 4-signal complexity |
| 7 | O | ...+ O | Three dashes — mirror of S, easy contrast |
| 8 | W I | ...+ W I | Short common letters complete the core set |
| 9 | N J E F | ...+ N J E F | Adds remaining short and medium letters |
| 10 | 0 Y V | ...+ 0 Y V | Introduces number 0 and remaining letters |
| 11 | G 5 / Q | ...+ G 5 / Q | Less common but important letters and symbols |
| 12 | Z H | ...+ Z H | Z and H complete the full alphabet |
| 13+ | Numbers + Punctuation | Full set | Add 0-9 and common punctuation to complete mastery |
Every Letter in Detail — A to Z
All 26 letters with mnemonic, tap pattern, sound, mirror pair note, and usage examples. Each section is directly linkable — e.g. /morse-code-alphabet/#azs-A.
A in Morse Code — .- (dit dah)
Dot-dash — short then long. One of the most natural patterns to learn: a quick tap followed by a sustained tone. A is the mirror image of N (-.). In a QSO, "A" appears in almost every callsign. The prosign AA (.-.-) means new line in formal radiograms.
AlphaW1AWAA = new line prosignB in Morse Code — -... (dah dit dit dit)
Dash-dot-dot-dot — one heavy thud then three quick taps. B is the mirror of V (...-): where V ends with a dash (Victory!), B starts with one. The number 8 shares a similar heavy-then-dots feeling at 5 signals (--...). BT (–···–) is the break prosign, and BK (-...-.-) invites a reply.
BravoBT = break prosignBK = invite replyC in Morse Code — -.-. (dah dit dah dit)
Dash-dot-dash-dot — alternating heavy-light, twice. C has the same rhythm as the word "CQ" which starts every calling sequence on ham radio. CQ itself is C then Q, two of the most recognisable letter sounds. The alternating pattern makes C impossible to confuse once learned.
CharlieCQ = general callCL = closing stationD in Morse Code — -.. (dah dit dit)
Dash-dot-dot — one thud then two quick taps. D is the mirror of U (..-): U ends with a dash, D starts with one. DE (-.. .) is the most used two-letter sequence in CW — meaning "from" or "this is" — always followed by a callsign. DN (-..-.) is the fraction bar prosign.
DeltaDE = from (this is)DN = fraction prosignE in Morse Code — . (dit)
A single dot — the shortest code in the entire Morse alphabet. E is the most common letter in English, so Samuel Morse gave it the simplest code. Its mirror T (-) is the second most common. Eight E's in a row (........) is the error prosign, sent to cancel a mistake. E appears in almost every English word.
EchoE = most common English letterEEEEEEEE = error prosignF in Morse Code — ..-. (dit dit dah dit)
Dot-dot-dash-dot — two light taps, one heavy, one light. F is the mirror of Z (--..). The mnemonic: "di-di-dah-dit" or think "F-alling" — quick-quick-THUD-bounce. F country prefixes include France (F) and many Pacific island nations. The quotation mark (.-..−.) contains F's pattern inside.
FoxtrotF prefix = Francedi-di-dah-dit mnemonicG in Morse Code — --. (dah dah dit)
Dash-dash-dot — two heavy tones then a light tap. G is the mirror of W (.--): W starts with a dot then two dashes, G starts with two dashes then a dot. QRG (your exact frequency) is one of the most important Q codes for frequency management. G prefixes include Great Britain (G, GM, GW, GI).
GolfQRG = exact frequencyG prefix = Great BritainH in Morse Code — .... (dit dit dit dit)
Four dots — the most dots of any letter in the alphabet. H is pure staccato: four rapid taps with no dashes. QTH (location) contains H as its final letter, and the four dots are unmistakable when heard at speed. The H sound at high WPM becomes a rapid flutter. Compare with 4 (....-) which is four dots then a dash.
HotelQTH = location code4 dots — fastest letterI in Morse Code — .. (dit dit)
Two dots — quick-quick. I is the mirror of M (--): two dots versus two dashes. I and M are the first pair many beginners learn because their sounds are so distinct — I is light and quick, M is heavy and slow. "I" = two eyes, two dots. Common in callsign suffixes worldwide.
IndiaI prefix = ItalyCommon in suffixes: WB2IJ in Morse Code — .--- (dit dah dah dah)
Dot then three dashes — a quick start then a long sustained trio. J sounds like a quick knock followed by a slow triple knock. The apostrophe punctuation mark (.----.) has J's three dashes at its heart with dot bookends. J prefixes include Japan (JA, JH etc.) — one of the most active ham radio nations.
JulietJA prefix = JapanApostrophe contains J's patternK in Morse Code — -.- (dah dit dah)
Dash-dot-dash — the K prosign pattern. K alone means "go ahead, any station" — the most powerful invitation in CW. K is the mirror of R (.-.) — both are three-signal symmetric patterns. The Koch learning method starts with K and M because their sounds are maximally distinct. K prefixes dominate US callsigns.
KiloK = go ahead prosignK prefix = USA callsignsL in Morse Code — .-.. (dit dah dit dit)
Dot-dash-dot-dot — quick, long, quick, quick. L is the mirror of Q (--.-). The mnemonic: "di-dah-di-dit" — hear the long note in the middle. L is one of the letters in the Koch sequence added in the middle stages. The quotation mark (.-..−.) starts with L's pattern. Common in European callsign prefixes (LA, LU, LY).
LimaLA prefix = Norwaydi-dah-di-dit mnemonicM in Morse Code — -- (dah dah)
Two dashes — slow and heavy. M is the mirror of I (..) and the first letter learned in the Koch method alongside K. The sound is unmistakable: two long tones. M is the second most common letter in CW abbreviations. DE is "from" and DE W1AW begins every ARRL W1AW bulletin transmission.
MikeM prefix = MexicoKoch Step 1 start letterN in Morse Code — -. (dah dit)
Dash-dot — heavy then quick. N is the mirror of A (.-). In CW abbreviations N means "no" or "negative." KN (-.--.): K plus N means "go ahead, named station only." The number 9 (----.) contains N's pattern as its final two elements. N prefixes include Norway (LA) and many other nations.
NovemberN = no / negativeKN = go ahead named stationO in Morse Code — --- (dah dah dah)
Three dashes — long and sustained. O is the mirror of S (...). Together S and O form the heart of SOS: ...---... The number 0 (-----) is O extended to five dashes. O is the longest three-signal letter — pure dashes create a distinctive rumbling tone at speed that is instantly recognisable even in heavy QRM.
OscarSOS = ...---...0 = ----- (five dashes)P in Morse Code — .--. (dit dah dah dit)
Dot-dash-dash-dot — dot bookends around two dashes. P is a balanced, symmetric pattern. The mnemonic: "di-dah-dah-dit" — light, heavy, heavy, light. P shares the bookend family with X (-..-). P prefixes include the Philippines (DU), Poland (SP), and Portugal (CT). The period/full stop (.-.-.-) is six alternating signals starting similarly.
PapaSP prefix = PolandSymmetric dot bookend patternQ in Morse Code — --.- (dah dah dit dah)
Dash-dash-dot-dash — two heavy, one light, one heavy. Q is the mirror of L (.-..). Every Q code — QTH, QSL, QRP, QRM and 54 others — begins with this letter. The pattern --.- is deeply associated with CQ (--.- -.-.) the universal calling signal. Q appears at the start of every Q-code transmission.
QuebecQ codes: QTH QSL QRP…CQ = Q is the second letterR in Morse Code — .-. (dit dah dit)
Dot-dash-dot — light, heavy, light. R is the mirror of K (-.-). The AR prosign (.−.−.) is two R's merged and means "end of message." In CW, "R" alone means "roger" — all received and understood. R is one of the first letters in the Koch learning sequence because its sound is so distinct and symmetric.
RomeoR = roger / receivedAR = end of message prosignS in Morse Code — ... (dit dit dit)
Three dots — rapid and light. S is the mirror of O (---). SOS (...---...) begins and ends with S. The AS prosign (.-...) means "wait" and starts with A then S. S is one of the easiest letters: three quick taps. At high speed S becomes a rapid trill distinctly lighter than O's heavy rumble.
SierraSOS = ...---...AS = wait prosign (.-...)T in Morse Code — - (dah)
A single dash — one solid long tone. T is the mirror of E (.). Together E and T are the two shortest codes — single dot and single dash — because they are the two most common letters in English. T alone means "the" in some CW abbreviations. At speed, T is unmistakable: one sustained note.
TangoT = the (abbrev.)Single dash — simplest codeU in Morse Code — ..- (dit dit dah)
Dot-dot-dash — quick-quick-LONG. U is the mirror of D (-..). The pattern feels like building momentum: two light taps then a landing. U appears in one of the most common CW abbreviations: UR (your), FB (fine business), and HR (here). In the Koch method U is added early in step 4.
UniformUR = your (abbrev.)U prefix = UkraineV in Morse Code — ...- (dit dit dit dah)
Three dots then a dash — the V for Victory signal. During World War II, the BBC began broadcasts with V in Morse (dit-dit-dit-dah) matching Beethoven's Fifth Symphony opening. V is the mirror of B (-...). The VA/SK prosign (..-.−.) which ends all contacts is built on V's three-dots-then-dash foundation.
VictorV for Victory (WWII)Beethoven's Fifth rhythmW in Morse Code — .-- (dit dah dah)
Dot-dash-dash — quick then two long. W is the mirror of G (--.). W prefixes dominate US amateur callsigns (W1, W2 … W9, WA, WB, WC, WD, WK, WN, WR, WS, WX). At speed W sounds like a quick knock then a double boom. W appears in CW abbreviations WX (weather), WPM (words per minute), and WKD (worked).
WhiskeyW prefix = USA (main)WX = weather, WPM = speedX in Morse Code — -..- (dah dit dit dah)
Dash-dot-dot-dash — dash bookends around two dots. X is a symmetric bookend pattern: heavy, light, light, heavy. The DN prosign (fraction bar / slash) has the same structure. X is rare in English and therefore rarely heard in callsigns. The pattern is memorable because of its perfect symmetry — start and end the same way.
X-rayXE prefix = Mexico (also)Dash bookend = symmetricY in Morse Code — -.-- (dah dit dah dah)
Dash-dot-dash-dash — like K (-.-) with an extra dash at the end. Y is one of the heaviest-sounding letters: three dashes and one dot. In ham radio, YB is the prefix for Indonesia (the world's fourth most populous country). The pattern's weight makes it sound distinctive and authoritative at speed.
YankeeYB prefix = IndonesiaK extended: -.- becomes -.--Z in Morse Code — --.. (dah dah dit dit)
Dash-dash-dot-dot — two heavy then two light. Z is the mirror of F (..-.). "Zulu time" means UTC — Z is the military and aviation abbreviation for Coordinated Universal Time, which is why radio operators worldwide say "1430 Zulu" instead of "14:30 UTC." ZL is the prefix for New Zealand.
ZuluZ = Zulu time (UTC)ZL prefix = New ZealandAlphabet Practice & Encoding Tools
Hands-on tools to translate text to Morse code, train ear recognition using the Koch method, and test your speed with dual-mode quizzes.
Text to Morse Encoder
ITU-R M.1677-1 Standard
Type any message to convert it into standardized Morse code dots, dashes, and word breaks (/).
Letter Practice Trainer
Koch Ear-Training Method
Listen to the audio rhythm at full character speed. Type the corresponding English letter to reinforce ear reflex.
Click “Start Letter” to begin ear training
Practice Quiz — Letter to Morse and Morse to Letter
Test both directions with instant audio feedback. Choose your Koch difficulty tier to measure recognition accuracy.
Frequently Asked Questions
Answers to common questions about learning, hearing, and using the International Morse Code alphabet.
The Morse code for A is dot-dash (.-). It is one of the shortest codes with just two signals. A is the mirror image of N (-.) — they are each other's opposite.