Back to alphabet

Number 4

What is 4 in Morse Code?

The Morse code for 4 is ....-.

4....-

Breakdown

4 consists of dot, dot, dot, dot, dash — 4 dots and 1 dash. Like every number, it uses exactly five signals.

Timing Structure

· Dot: about 1 time unit
· Dash: about 3 time units
· 4 takes 11 units in total: 4 dots (4 units) + 4 gaps (4 units) + 1 dash (3 units)

Memory Trick

"di-di-di-di-dah" — four dots then a single closing dash.

Example Words

440 ....- ....- -----440 Hz is the tuning pitch for musical note A4.
44 ....- ....-44 is sometimes used as a friendly closing in radio traffic.

Similar Characters

6 (-....)Mirror images: four dots + a dash vs a dash + four dots.
V (...-)4 has four dots before the dash; V has three.

Practice This Character

Ready to test yourself? The quiz picks characters at random, so jump in and focus on 4 (....-) when it appears.

Practice 4 in the Quiz