Morse Code Numbers 0–9 — Full Chart with Audio

Morse code numbers are one of the easiest parts of the code to learn — and the most frequently skipped by beginners. Every amateur radio callsign contains a number. Every signal report uses numbers. The standard farewell (73 — best regards) is a number. You cannot operate Morse code without numbers.

The good news: all ten digits share a pattern that makes them learnable as a system rather than ten separate memorisations.

The Complete Set — All 10 Numbers

The One Rule That Covers All 10 Digits

Numbers 1 through 5: start with dots. The number of leading dots equals the digit. 1 starts with one dot. 2 starts with two. 3 starts with three. 4 starts with four. 5 is five dots.

Numbers 6 through 9 and 0: start with dashes. 6 has one leading dash. 7 has two. 8 has three. 9 has four. 0 is five dashes.

The symmetry is exact: 1 and 9 are mirror images (·———— and ————·). 2 and 8 mirror each other. 3 and 7. 4 and 6. Only 5 (all dots) and 0 (all dashes) stand alone at the extremes.

Why All Numbers Use Exactly 5 Signals

Five signals distinguishes numbers from letters, which range from 1 to 4 signals. When receiving Morse at speed, you can identify a five-signal pattern as a number before you have even finished decoding which digit it is. This distinction is practically useful — especially when receiving callsigns, where numbers and letters are interleaved.

The uniform length also meant that telegraph-era operators could easily verify a received number by counting signals. Prices, quantities, dates, account numbers — all the commercial content that drove the telegraph business — relied on accurate number reception. The 5-signal structure made that reliable.

Numbers in Real Morse Use

Callsigns: Every amateur radio callsign includes a number indicating the operator's ITU region. W3ABC, KG4XYZ, VE7PQ — the number is part of every identification. You cannot exchange callsigns without Morse numbers.

RST signal reports: The standard contact report uses three numbers: Readability (1–5), Signal Strength (1–9), Tone (1–9). A typical exchange: "UR 599" (your signal is 5-9-9 — perfect). This happens in virtually every CW contact worldwide.

73 and 88: The most transmitted Morse number sequences in history. 73 means "best regards" — the standard farewell. 88 means "love and kisses" — used between friends on air. These cultural conventions have been part of radio operation for over a century. See the full list on the Abbreviations page.

Frequencies: Operators discuss which frequency to move to in Morse. "QSY to 14.030" requires the numbers 1, 4, 0, 3, 0.

When and How to Learn Numbers

Numbers are best learned after the alphabet — typically after 2–3 weeks of daily practice with letters. They are rarely needed at the beginner stage, and the pattern makes all ten learnable in a single session once you are ready.

The Learn page covers numbers in Lessons 9–11, after the complete alphabet. The Quiz Level 6 is numbers-only — 10 questions, 18 seconds each. The Practice mode includes number drills in its random rotation.

Practice sequence that works: learn the rule (dots for 1–5, dashes for 6–0), practise your phone number in the Translator, then practise today's date, then random 4-digit strings. Most people can reliably copy all 10 digits within one focused session of 20–30 minutes.

Individual Number Guides

For detailed information on each digit including signal pattern, examples, and practice tips:

• 0 in Morse Code — -----
• 1 in Morse Code — .----
• 2 in Morse Code — ..---
• 3 in Morse Code — ...--
• 4 in Morse Code — ....-
• 5 in Morse Code — .....
• 6 in Morse Code — -....
• 7 in Morse Code — --...
• 8 in Morse Code — ---..
• 9 in Morse Code — ----.

Frequently Asked Questions

The Broader Morse Code System

Numbers are part of a complete Morse code system that covers 26 letters, 10 digits, and procedural signals. Numbers appear in every amateur radio callsign, in every RST signal report, in frequency identification, and in the two most culturally important sequences in CW: 73 (best regards) and 88 (love and kisses).

The number system is the final step in the learning curriculum. After completing the alphabet, most learners can add all 10 digits in a single focused session — the pattern makes this efficient. From there, the full character set is available and real Morse communication is practical.

Complete Learning Path

• Learn Morse Code — 12 lessons covering the full alphabet and numbers, audio-first
• Practice Mode — includes number drills alongside letter practice
• Quiz Level 6 — numbers-only timed test, 10 questions
• Translator — type any number sequence and hear it played
• Alphabet and Numbers Reference — all characters with audio
• Abbreviations — 73, 88, and all number-based conventions explained

Morse Numbers in Practice — Real Scenarios

A typical amateur radio CW contest exchange looks like this: "5NN TU" — a shorthand for 599 (perfect signal report) followed by "thank you". At 25 WPM contest speed, those three numbers and two letters flash past in under two seconds. Recognising number patterns at speed requires the same audio automaticity as letter recognition — not intellectual recall, but immediate pattern response.

In a standard casual CW contact, the typical number sequence is: signal report (RST — three digits), year (four digits), and sometimes power output in watts (two to four digits). A complete exchange might include a dozen number transmissions in a five-minute contact. Learning numbers is not optional for any serious CW operator.

The fastest path to number fluency: practise your phone number in Morse daily for one week using the Translator. Ten digits, familiar sequence, immediate feedback on accuracy. After a week of this, branch out to dates and random 4-digit strings. Most people achieve reliable number recognition in 1–2 weeks of this targeted practice.

See each individual number post for detailed practice guidance: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Each covers signal timing, real-world usage in callsigns and RST reports, and the specific pattern context for that digit.