International Morse Code Chart PDF

It is a printable reference sheet that lists the International Morse code patterns for all 26 letters A-Z, the numbers 0-9, common punctuation, and frequently used prosigns. Every row shows the character, its dot-and-dash pattern, and the plain-text code, following ITU-R M.1677-1.

Yes. The PDF and the high-resolution PNG are free to download and print for classrooms, escape rooms, study sheets, and amateur radio practice. Both files are hosted on this site, so the download never leaves the morsetranslator.me domain.

Each row pairs a character with its signal pattern. A dot (.) is a short signal and a dash (-) is a long signal about three times longer. Dots and dashes are written as plain text, for example A is .- and B is -..., so the whole table stays readable without JavaScript.

Punctuation marks such as . , ? and / represent written characters. Prosigns are procedural signals that operators send as one fused pattern with no gap between the letters, for example AR (.-.-.) ends a message and SK (...-.-) ends a contact. Prosigns are shown for reference and are not part of the translator's text input.

This chart uses International Morse code as defined by ITU-R M.1677-1, which has one consistent dot-and-dash pattern for every character and fixed timing ratios. American Morse was an earlier landline code with multiple dash lengths and internal spaces, so the same letter can look different between the two systems.