Morse Code Chart

Letters A–Z

Numbers 0–9

Numbers are always five signals long and follow a counting pattern — see the numbers guide for the easy way to learn them.

Punctuation & symbols

International letters

Languages with accented letters have their own official codes in the same ITU standard family. The translator understands all of these — type the letter and it converts, paste the code and it decodes.

Prosigns & radio abbreviations

On the air, operators use procedural signals ("prosigns") and abbreviations to keep conversations short. Prosigns are sent as one flowing run of elements, without the usual letter gaps. These are the ones you will hear most:

The Play buttons send SOS, AR, SK and BT the authentic way — as one flowing run of elements, exactly as an operator would key them. Ready to test your ear? Try the practice trainer.

The timing rules behind the chart

Every code above is built from one unit of time:

• A dot lasts 1 unit.
• A dash lasts 3 units.
• The gap between signals inside one character is 1 unit.
• The gap between characters is 3 units.
• The gap between words is 7 units.

Speed is measured in words per minute (WPM). At 20 WPM — a comfortable learning speed — one unit is 60 milliseconds. Try any character in the translator and listen for these gaps; they are what make Morse readable by ear.