Easy way to remember
1 begins with one dot, then four dashes to make five signals.
Number 2 of 10
1 in Morse code is dot dash dash dash dash (· − − − −), said di-dah-dah-dah-dah.
Ready when you are.
5 signals17 units1.02 s at 20 WPM
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di · dah · dah · dah · dah
.----
Use di · dah · dah · dah · dah as a memory cue. Send dot dash dash dash dash. Hold each dash for three dot lengths and leave one dot length between signals.
1 begins with one dot, then four dashes to make five signals.
9 is dash dash dash dash dot (− − − − ·); 1 is dot dash dash dash dash (· − − − −). It reverses the signal order.
0 is dash dash dash dash dash (− − − − −); 1 is dot dash dash dash dash (· − − − −). Only the first signal differs: 1 opens with a dot, 0 is all dashes.
1 has four dashes after its dot; J in Morse code uses three.
| Word | Morse | Try it |
|---|---|---|
| 1 | .---- | Open in translator → |
| 10 | .---- ----- | Open in translator → |
| 11 | .---- .---- | Open in translator → |
1 is dot dash dash dash dash (· − − − −), said di-dah-dah-dah-dah.
It represents the number 1. Any extra meaning depends on the operating context or the surrounding message.
The pattern uses 17 units, including its internal gaps. At 20 WPM that is 1.02 seconds, before the next letter gap.
Compare 9 (− − − − ·) with 1 (· − − − −). Listen for the difference in signal order and length.
Checked against ITU-R M.1677-1 · Last reviewed · How we check our pages · Report it