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Morse Code Number 4
Four dots followed by one dash – the standard ITU pattern for digit 4.
· · · · —
🎧 Listen to Number 4
✔ Dot = 1 unit, dash = 3 units. Gap between symbols = 1 unit. Pattern: 4 dots, 1 dash.
✋ Tapper – practice sending 4
Tap DOT four times, then DASH one time (with short pauses between).
Correct sequence for 4: dot + dot + dot + dot + dash.
📘 Tutorial: How to send and receive 4
Pattern breakdown
Number 4 = · · · · — (four dots, then one dash). Written in standard Morse as ....-.
Timing rules
- Dot length = 1 unit of time
- Dash length = 3 units
- Gap between symbols = 1 unit
- Total duration ≈ 4×1 (dots) + 1×3 (dash) + 4×1 (internal gaps) = 4 + 3 + 4 = 11 units
Spoken mnemonic
“di di di di dah” – four short “di”, then one long “dah”.
Common uses
- Used in phone numbers, radio frequencies, APRS, and numeric codes. The four‑dot start distinguishes it from 3 (three dots) and 5 (five dots).
✍️ Practice quiz
Question: What is the correct Morse code for number 4?
Use . for dot, - for dash, or copy-paste · and —.
❓ Frequently asked questions about 4
Why does 4 have four dots and one dash?
Digits 1–5 follow a clear progressive pattern: the number of leading dots equals the digit value, and the remaining symbols are dashes (total 5 symbols). So 1 → .—-, 2 → ..—, 3 → …–, 4 → ….-, 5 → …..
How do I pronounce 4 in Morse code?
Say “di di di di dah” – four short “di” sounds, then a single long “dah” sound.
How can I tell 4 apart from 3 or 5?
Listen carefully: 3 has three dots then two dashes (di di di dah dah), 4 is four dots then a dash (di di di di dah), 5 is five dots (di di di di di). Count the initial quick taps — 4 has exactly four dots before the final dash.
Can I practice number 4 with a flashlight or buzzer?
Absolutely – four short flashes (dots) then one longer flash (dash), with equal gaps between each signal element.