Morse Code Chart
A print-ready reference for International Morse letters, numbers, timing, and selected signals.
International Morse Code Chart
Standard ITU Reference
Letters
Numbers
Signals
What the Print Layout Includes
The printable panel contains the 26 Latin letters, ten numerals, SOS, the eight-dot error signal, and the wait procedural signal. Website navigation, explanatory sections, and the ordinary footer are hidden by the print stylesheet so the reference itself is the focus.
Paper size, browser margins, and print scaling differ, so “one page” cannot be guaranteed on every device. In the print dialog, start with portrait orientation, 100% scale, and default margins. If the final rows move to another sheet, reduce the scale slightly rather than cropping the chart.
Print Check Before You Save or Share It
- Confirm that both letter columns run from A through Z.
- Confirm that all ten digits, including 0 and 9, are visible.
- Check that dot and dash characters remain dark and legible in the preview.
- Verify that the Signals block is not clipped at the bottom.
- Use “Save as PDF” only if your browser provides it; this site does not upload or store the generated file.
How to Read the Printed Patterns
A dot represents one timing unit and a dash represents three units. The printed chart shows the elements inside each character; it does not draw the silent one-unit gaps between those elements. Letter and word spacing are summarized in the timing table below the printable panel.
When spoken for practice, a dot is commonly called “dit” and a dash “dah.” For example, C (-.-.) can be voiced as “dah-di-dah-dit.” Spoken mnemonics are optional and are not part of the encoded signal.
Procedural Signals on This Chart
SOS (... --- ...) is shown with visual spacing for recognition. The error pattern (........) and wait pattern (.-...) are procedural signals, not alphabet letters. Operating procedures can specify that a prosign is sent as one continuous pattern without ordinary letter spacing.
Reference and Version Scope
The character and timing data are checked against ITU Recommendation M.1677-1. The panel is a compact Latin-letter reference; it does not attempt to include every language extension, abbreviation, or operating procedure.
Morse Code Timing Quick Reference
A printed chart shows the pattern, but correct Morse also depends on spacing. Use one unit for a dot, three units for a dash, one unit between elements of the same character, three units between letters, and seven units between words.
| Element | Length | Example |
|---|---|---|
| Dot | 1 unit | E = . |
| Dash | 3 units | T = - |
| Letter gap | 3 units | Between S and O |
| Word gap | 7 units | Between two words |
Morse Code Chart FAQs
Does International Morse code include numbers?
Yes. Each digit from 0 to 9 uses a five-element pattern. Open the Morse code numbers guide for an interactive reference and memorization pattern.
Can I print this chart?
Yes. Use your browser print command and select portrait orientation. A printed copy works best as a quick lookup while audio practice builds recognition by sound.
What is the difference between a slash and a gap?
Many typed examples use a slash to make word boundaries visible. In transmitted Morse, the word boundary is a silent gap lasting seven time units.
How do I check a whole word with the chart?
Split the word into letters, look up each card, and preserve the order. For example, MAP becomes -- .- .--.. Use the translator afterward as an independent check.
Is the chart enough for listening practice?
No. It is a visual reference. Listening requires recognizing each complete rhythm at a useful speed, so combine the chart with short audio and quiz sessions.