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English → Morse

English to Morse Code

An accurate English-to-morse converter using the international (ITU) alphabet — the variant every radio operator, Boy Scout manual, and modern reference uses today.

International morse, not “American” morse

Two morse variants exist. Original American Morse (or “Railroad” morse) used variable-length internal spaces and survived in US railroad telegraphy into the 1970s. Almost nothing uses it today. International Morse — standardised in 1865 at the International Telegraph Conference in Paris — uses only short and long pulses with fixed gaps, and is the one we convert to.

Every letter A–Z, digit 0–9, and the full punctuation set (period, comma, question mark, exclamation mark, apostrophe, quotation mark, parentheses, colon, semicolon, hyphen, ampersand, at-sign, dollar-sign, plus-sign, equals-sign, forward-slash, and underscore) is in our table.

How the converter handles edge cases

Common conversions

Why English is unusually efficient in morse

Morse was built around English letter frequencies, and converting English is where that design pays off. The letters that appear most often — E (one dot) and T (one dash) — got the shortest codes, so a typical English sentence encodes into far fewer dots and dashes than its letter count suggests. A word like the, three of the commonest letters in the language, is just - .... . — six elements. The same isn't true for every language: encode a word full of rare letters and the morse balloons. English, the language the code was tuned for, is close to a best case.

English quirks that surprise people

A few things about English catch people out in the output. Morse encodes spelling, not sound, so silent letters are still sent in full — knight keeps its K and its GH (-.- -. .. --. .... -), and hour keeps its silent H. Homophones that sound identical look completely different: their, there and they'reeach produce their own distinct pattern. And English's two one-letter words are the shortest possible messages — I is .. and a is .-, each a single character you could flash in under a second.

Frequently asked questions

How do you write English in morse code?

Each letter of the English alphabet has a unique pattern of dots and dashes in the international morse table. Type English into the box above — the converter returns the morse pattern with proper letter gaps (one space) and word gaps (forward slash).

Why does my morse look different from what I saw elsewhere?

You may be seeing 'American morse' from old railroad references. International morse (what this page uses) is the modern standard — every post-1865 textbook, ham radio manual, and Boy Scouts merit badge uses it.

Is the converter accurate for radio contesting?

Yes. The underlying lib/morse.ts table is the full ITU alphabet unit-tested against every character. The timing presets (5–40 WPM) match standard CW operator practice; Farnsworth spacing is available for learners.

Related
Reverse direction (Morse → English)
Related
Full morse alphabet table
Related
Morse code numbers 0–9