Morse code chart
Every letter, digit and common punctuation mark in International Morse, with the timing rules that make it a rhythm rather than a list. The translator below the chart lets you hear any of it.
Guide
How to use it
- Open the reference chart inside the tool above, it lists A to Z, 0 to 9 and punctuation.
- Read codes as rhythm: dot is one beat, dash is three, "A" (.-) is di-DAH.
- Notice the frequency logic: E and T (the commonest letters) are the shortest codes, Q and Y among the longest.
- To hear any character, type it in the box and press play, sound teaches Morse far faster than shapes.
Examples
The patterns inside the chart
One dot, one dash: the two most frequent English letters got the two cheapest codes. Vail and Morse counted printers’ type cases to decide, empirical compression in 1838.
Numbers are beautifully systematic: 1 is .---- , 2 is ..--- , counting dots up to 5 (.....), then dashes take over down to 0 (-----). Learn the rule, not ten codes.
Several letters mirror: A (.-) and N (-.), D (-..) and U (..-), B (-...) and V (...-). Learning them as pairs halves the memory work.
Method
How it works
This is International (ITU) Morse, standardised in 1865 and essentially unchanged since, American landline Morse died with the telegraph companies. Timing is all ratios of the dot: dash three dots, letter gap three, word gap seven, so speed changes leave the rhythm intact.
The learning method with the best record is hearing whole-character sounds at full speed with long gaps (Farnsworth/Koch), never counting dots visually, the chart is a reference, the sound button is the teacher.
FAQ
Frequently asked questions
How long does Morse take to learn?
The alphabet by sound: a few weeks of ten-minute daily sessions with the Koch method. Comfortable 15 WPM conversation: months of practice, like any instrument.
Is there a trick to remember codes?
Mnemonic words exist, but operators advise against them, they add a translation step your brain must later unlearn. Learn di-DAH as the sound of A directly.
What is the @ sign in Morse?
AC run together: .--.-. , officially added in 2004 for email addresses, the newest character in the code.
Why no lowercase in Morse?
The code predates any need: telegraph output was capitals, and case adds nothing over the wire. Case conventions belong to the reader.
What are prosigns?
Procedure signals run together without letter gaps: SOS (...---...) as one sign, AR (.-.-.) for end of message, SK (...-.-) for end of contact. They are punctuation for conversations rather than characters.
Can I print this chart?
Print the page from your browser, the chart section prints cleanly on one sheet, and the FAQ makes decent revision notes.
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