Braille Numbers: How to Write 0 to 9 and Beyond

Numbers in braille are written with the numeric indicator, dots 3, 4, 5 and 6 (⠼), followed by the letters a to j, which then stand for 1, 2, 3… 9 and 0. That is why 1 and a are the same cell: the only thing that tells them apart is the indicator in front.

That is the whole rule. What follows is the full chart, how longer numbers work in Unified English Braille (UEB), and the mistakes almost everyone makes at first.

Key points

• Braille has no separate cells for digits. It reuses the first ten letters of the alphabet and marks them with an indicator.
• The numeric indicator is dots 3, 4, 5 and 6: ⠼.
• It is written once at the start of a number, not before every digit. The year 2026 takes five cells, not eight.
• The letters a to i stand for 1 to 9, and j stands for 0. Zero is not a new cell.
• In UEB, a comma or decimal point inside a number does not end it; a space, a hyphen or a colon does.
• A letter from a to j right after a number needs the grade 1 indicator (⠰), or it would be read as another digit.

Why 1 is written like a

Because the braille cell only has 64 possible combinations, including the empty one, and spending ten of them on digits that could already be represented would have been a waste. Louis Braille solved it with a mode indicator: a cell that is not read as anything itself, but changes how the next cells are read.

It works like the Shift key on a keyboard. The key types nothing; it changes what the next keystroke types. The numeric indicator does exactly that: it turns the first ten letters into digits until something ends the number.

So the short answer to the most common question is this: 1 and a are not written the same way, they use the same cell. In real text they never appear alone. The ⠁ after ⠼ is a 1; the same ⠁ without that indicator is the letter a.

Braille numbers chart, 0 to 9

The ten digits, with the letter whose cell they share, the raised dots and the braille character. In running text each digit follows the numeric indicator ⠼.

Notice a detail that saves memory: no digit uses dot 3 or dot 6. All ten fit in the top square of the cell, dots 1, 2, 4 and 5. If you feel a dot at the bottom, it is either not a digit or it is the numeric indicator itself.

The full alphabet, capitals and punctuation are on our braille alphabet chart.

Why zero is j

Because the digits follow the order of the alphabet, and 0 is the tenth symbol in the series, not the number ten. The mapping runs 1→a, 2→b, up to 9→i, and the remaining slot, j, goes to 0.

The intuition that fails is expecting j to mean 10. It does not, because 10 is not a digit: it is written with two cells, the 1 and the 0: ⠼⠁⠚.

How to write numbers with several digits

The numeric indicator goes once, at the start of the whole number. It is not repeated before each digit. This is by far the most common beginner's mistake.

Take the year 2026:

Result: ⠼⠃⠚⠃⠋. That is five cells: one indicator plus four digits. Repeating the indicator before every digit would make eight, and an experienced reader would notice it the way you would notice "2 0 2 6" written with spaces.

Commas, decimals and fractions

In Unified English Braille, three symbols can sit inside a number without ending it:

When a number ends

A number ends at a space or at any symbol that is not a digit, comma, decimal point or fraction line. After that, the indicator has to be written again.

Letters right after a number

This is where English braille needs one extra cell. The letters a to j use the same cells as the digits, so a letter from that range right after a number would be read as one more digit. UEB puts the grade 1 indicator, dots 5-6, in between.

Prices, percentages and math

Everyday arithmetic can be written this way. For school and university mathematics, many schools in the United States use a separate code, the Nemeth Code, which the Braille Authority of North America kept alongside UEB; in other English-speaking countries, UEB has its own rules for technical material.

You can check any of these by typing the number into our braille translator and watching the indicators appear on their own.

Frequently asked questions

How many cells does a number take in braille?

One cell per digit, plus one for the numeric indicator at the start. A four-digit year takes five cells; a two-digit number, three.

Do you put the numeric indicator before every digit?

No. It goes once, at the start, and covers all the digits that follow. It only has to be repeated after something that ends the number, such as a space, a hyphen or a colon.

How do you write 0 in braille?

With the cell of the letter j, dots 2, 4 and 5, after the numeric indicator: ⠼⠚. There is no separate cell for zero.

Is the numeric indicator the same in every language?

Dots 3-4-5-6 as the numeric indicator are common to most alphabetic braille codes, including English and Spanish. What changes is the detail: which symbols can sit inside a number, and how a letter after a number is marked. Codes that do not encode letters, such as Japanese braille, work differently.

Where should I start if I know no braille at all?

With the six-dot cell and the three series of letters, before numbers. We explain it in how to learn braille as an adult.