What is the Morse code for SOS?

··· −−− ··· — three dots, three dashes, three dots, sent as one unbroken signal.

How long is a dash compared with a dot?

A dash lasts three dots. The gap inside a letter is one dot, the gap between letters three dots, and the gap between words seven dots.

Learn it by sound, not by reading the chart: hear a letter, send it back, and keep sessions short. The practice on this page does exactly that.

E is a single dot and T a single dash — they are the most common letters in English, which is why they got the shortest codes.

···−

Tap a letter to hear it at 600 Hz, the same tone and timing as the app: a dot is 0.14 s, a dash three times that.

··· −−− ···

Type a name or a short word. Letters and numbers are converted; tap Play to hear it at the same speed as the chart.

The app's own practice screen: ten questions, instant feedback, nothing to install.

What is the Morse code for SOS?: ··· −−− ··· — three dots, three dashes, three dots, sent as one unbroken signal.
How long is a dash compared with a dot?: A dash lasts three dots. The gap inside a letter is one dot, the gap between letters three dots, and the gap between words seven dots.
What is the easiest way to learn Morse code?: Learn it by sound, not by reading the chart: hear a letter, send it back, and keep sessions short. The practice on this page does exactly that.
Which letters are the shortest?: E is a single dot and T a single dash — they are the most common letters in English, which is why they got the shortest codes.