What Is Morse Code? A Simple Guide for Beginners

By the Morse Code Translator team · Published October 24, 2026 · Facts checked against the sources below · How we work

Morse code is a way to send letters and numbers with just two signals: a short one and a long one. You can send it with a beep, a flash of light, a tap on a table, or a pulse on a radio. It does not matter what makes the signal. What matters is the pattern.

This guide explains how the code works, where it came from, and why people still learn it. Want to try it as you read? Open the translator in another tab and type your name.

The short answer

Morse code turns each letter into a set of short and long signals. The short signal is called a dot. People who send it by ear call it “dit”. The long signal is called a dash, or “dah”. A dash lasts three times as long as a dot.

So the letter A is ·−, which sounds like “di dah”. The letter E is just ·. The letter T is just −. Every letter of the alphabet has its own pattern, and so does every number from 0 to 9.

Why some letters are short and some are long

Look at a Morse code chart and you will see something odd. The codes are not in order. E and T are one signal each. Q and Y are four signals.

That is on purpose. Letters you use a lot, like E, T, A and I, got short codes. Letters you rarely use, like Q, J and Z, got long ones. This makes the average message much faster to send.

Here are the shortest codes:

Letter	Code	Sound
E	`·`	dit
T	`−`	dah
I	`··`	di dit
A	`·−`	di dah
N	`−·`	dah dit
M	`−−`	dah dah

The rhythm of Morse code

Morse code is a rhythm, not just a list of dots and dashes. The gaps matter as much as the signals. The world standard, called ITU-R M.1677-1, sets four simple rules:

A dash is as long as three dots.
Inside one letter, the gap between signals is one dot long.
Between two letters, the gap is three dots long.
Between two words, the gap is seven dots long.

Without these gaps, you could not tell “IT” from “IN” or “A”. Try it in the translator and listen to how the pauses split the letters.

How fast is it?

Speed is measured in words per minute, or WPM. The test word is PARIS. With the space after it, PARIS takes exactly 50 dot lengths. So at 20 WPM, one dot lasts 60 milliseconds.

The ARRL, the national group for ham radio in the US, says skilled operators often talk at 20 to 30 WPM. Beginners usually start between 5 and 15.

How Morse code is written down

On paper or a screen, you write a dot as a period and a dash as a hyphen or a short line. You leave one space between letters. You put a slash or a wider space between words.

So “HI MOM” looks like this:

···· ·· / −− −−− −−

Some signs, called prosigns, are two letters sent as one with no gap. The best known is SOS, which is sent as one long pattern: ···−−−···. Others mean things like “end of message” or “wait”. You can read about them on our alphabet page.

Where Morse code came from

Samuel Morse was a painter who became an inventor. The Library of Congress says he worked with Alfred Vail to build a telegraph and a code to go with it. On May 24, 1844, they sent the famous first public message from the US Capitol in Washington to Baltimore: “What hath God wrought?”

That first code was called American Morse. It was later changed into International Morse, which is the version radio uses around the world today. You can read the full story in our post on who invented Morse code.

At first, the telegraph printed the dots and dashes on a paper tape. Clerks soon found they could read the code by sound alone, just by listening to the clicks. That is still the best way to learn it.

How Morse code was sent

On a telegraph line, an operator pressed a key. The key closed an electric circuit, and the signal went down a wire to the next station. A long press made a dash. A short press made a dot.

Later, radio let ships and stations send Morse code through the air with no wire at all. Sailors could call for help from far out at sea. In 1906 a world meeting chose SOS as the distress call. Learn more on our page about SOS in Morse code.

Today you can send Morse code in many ways:

A beep on a radio, a speaker or a buzzer
A flash of a flashlight, a lamp or a phone screen
A tap on a wall, a desk or a pipe
A blink of the eyes
A pulse of vibration on a phone

Is Morse code still used?

Yes, but less than before. The ITU standard says Morse code is still used by amateur radio, and to a smaller extent by other radio services. In the US, the FCC used to make every ham radio operator pass a Morse code test. That rule ended in 2007. Many hams still love it, though, because a Morse signal can get through when voice cannot.

Planes use it too. The FAA says the only sure way for a pilot to check a VOR radio beacon is by its Morse code name, or its voice name if it has one. The beacon sends a short ID in Morse over and over.

Morse code also helps people who cannot speak or use a normal keyboard. Google added a Morse code keyboard to Gboard with the help of Tania Finlayson, a developer who uses Morse code to communicate. With one or two switches, a person can type every letter.

We go deeper into this in is Morse code still used.

How to start learning

You do not need a radio to learn. Here is a simple plan that many learners use:

Learn by sound. The ARRL says to learn each letter as a sound, not as a picture of dots and dashes.
Start small. Begin with two or three letters at a real speed. Add a new one when you get most of them right.
Practice every day. Many learners say about 20 minutes a day works better than one long session a week.
Use Farnsworth spacing. Keep the letters fast but make the gaps long. This gives your brain time to think.

Our guide to learning Morse code has a full plan. You can also make practice audio with the Morse code generator.

Fun things to try

Once you know a few letters, try these:

Spell your name and play it as a sound. Then save it as a ringtone.
Send “I love you” to someone with a flashlight. Our post on I love you in Morse code shows how.
Tap “hello” on a table and see if a friend can read it. See hello in Morse code.
Play a short message into the audio decoder and watch it turn back into text.

Key points

Morse code turns letters into short and long signals called dots and dashes.
A dash is three dots long. Gaps between letters are three dots, and between words seven dots.
Common letters have short codes so messages are faster.
It began with the telegraph in the 1840s and moved to radio later.
It is still used in ham radio, by aircraft beacons and as a tool for people with disabilities.

Tools for this guide

Frequently asked questions

Is Morse code a language?

No. It is a code for writing a language. You can send English, Spanish or any language that uses the Latin letters. The words stay the same. Only the way you send the letters changes.

Who uses Morse code today?

Ham radio operators use it most. It is also used by radio beacons for planes, and by some people with disabilities who type with one or two switches.

What is the hardest part of Morse code?

Most people find it hard to hear letters fast. At first you count dots. The trick is to stop counting and learn each letter as one sound.

Can you write Morse code with numbers?

Yes. Each figure from 0 to 9 has a code of five signals. For example, 1 is one dot and four dashes.