Morse Code Cheat Sheet: Printable PDF Reference
A compact, one-page Morse code cheat sheet in a 3-column layout. Letters, numbers, and punctuation in a single printable view, perfect for laminating, sticking on the fridge, or folding into your wallet.
Morse Code Cheat Sheet
International ITU-R M.1677 · inmorse.com
Letters
Numbers
Punctuation
Timing & Rules
- Dot (.) = 1 unit
- Dash (-) = 3 units
- Symbol gap = 1 unit
- Letter gap = 3 units
- Word gap = 7 units
- Words separated by /
- PARIS = 50 units (1 WPM)
- Dot time = 1.2 / WPM seconds
SOS = ... --- ...
Sent as one prosign, with no letter gaps.
Common Prosigns
.-.-= <AR> End of message.-...= <AS> Wait-...-= <BT> Break...-.= <SK> End of contact
How to Use This Cheat Sheet
The cheat sheet is laid out in three columns: letters (A to Z), numbers (0 to 9) with punctuation, and a quick-reference panel with timing rules and common prosigns. Print it on a single sheet of letter or A4 paper, in portrait orientation, for the best fit.
For laminating, print at 100% scale (no “fit to page”) so the rows align cleanly. The alternating-row background makes scanning easier in poor lighting, useful if you are referencing the sheet in a dim shack or by flashlight. The yellow Morse code is also readable in red light, which preserves night vision.
The prosigns at the bottom of column three deserve a quick explanation. <AR> (“end of message”) is sent as .-.- with no letter gap between the A and R. <SK> (“end of contact”) is ...-. with no gap between S and K. Prosigns are how Morse operators signal structural information without words.
When to Print vs. When to Bookmark
Print the Cheat Sheet
- When you are operating without internet (field day, camping, offshore).
- For a quick visual reference while copying Morse by ear.
- To hand out at ham radio classes or club meetings.
- As a study aid while learning the alphabet.
Bookmark the Interactive Tools
- For audio playback of each character.
- For guided practice with scoring and streaks.
- For real-time translation and audio generation.
- For the binary converter, image decoder, and SOS generator.
Ready to Practice?
Print the cheat sheet, then head to the interactive trainer to put it to use.