The complete International Morse Code reference chart. Click any letter, number, or symbol to hear it played.
This Morse code alphabet chart lists every letter, number, and supported symbol in the International Morse Code, with the standard dot-and-dash pattern for each. Click any tile to hear it played at your chosen speed. Use the Morse code alphabet below to look up a code in seconds, or to memorize the rhythm of each character by ear.
The letters are the core of the Morse code alphabet. Each letter uses between one and four elements, with the most common letters in English getting the shortest codes — a design choice that made telegraph transmission faster.
Numbers in the Morse code alphabet follow a tidy, memorable pattern: every digit is five elements long, starting with dots for 1–5 and dashes for 6–0.
The ITU-R M.1677-1 standard defines these punctuation marks for the Morse code alphabet. Note that parentheses, quotation marks, and other symbols are used less often but follow the same dot-and-dash logic.
These symbols are common in amateur-radio and hobby use but are not part of ITU-R M.1677-1. We list them separately so the Morse code alphabet remains accurate about what is standard and what is convention.
A dot (dit) is the basic unit of time, and a dash (dah) lasts three times as long. The space between parts of the same letter equals one dot, between letters three dots, and between words seven dots. When you click a tile above, the audio uses this exact 1:3:7 timing, so what you hear matches real on-air Morse code.
Don’t try to memorize the whole Morse code alphabet at once. Group characters by length and pattern, and always learn by sound rather than by counting dots and dashes:
MorseFlare
.) and T (-)..), A (.-), N (-.), M (--)Once you can copy the short letters reliably, add the numbers — they are all five elements and follow a simple dot-to-dash progression.
The Morse code alphabet grew out of Samuel Morse and Alfred Vail’s work on the telegraph in the 1830s. The original American Morse differed from what we use today; the International Morse Code alphabet was adopted later to remove ambiguities and create one global standard, now maintained as ITU-R M.1677-1. That single, worldwide alphabet is the one shown on this page.
The International Morse code alphabet has 26 letters (A–Z), 10 numbers (0–9), and a set of punctuation marks defined by ITU-R M.1677-1.
Group characters by their length and pattern. Start with single-element letters E (.) and T (-), then two-element letters, and learn by sound rather than by counting dots and dashes.
Yes. The International Morse Code (ITU-R M.1677-1) standardizes one alphabet used worldwide, unlike the older American Morse which had regional variations.
For quick translation, return to the Morse Code Translator, or start learning with the Learn Morse Code guide.