Number to Words Converter

1. Enter a whole number.
2. Read it written in words.
3. See the number with commas for easy reading.
4. Copy the capitalised version for the start of a sentence.

Here is what each result means:

Writing a number in words means spelling it out, so 1234 becomes one thousand two hundred thirty-four. This is often needed on cheques, legal contracts and official forms, where numbers are written both in figures and in words so there can be no confusion or tampering.

English builds number names from a small set of parts: the words for zero to nineteen, the tens like twenty and thirty, and the word hundred. Larger numbers are grouped in threes and given a scale word: thousand, million, billion and so on. So a long number is really a series of three-digit groups, each read out and followed by its scale.

This converter uses the short scale, the system common in English today, where a billion is a thousand million. It groups the digits automatically and spells each part, handling numbers from zero up into the trillions, as well as negative numbers, which are prefixed with the word negative.

Writing numbers in words also removes ambiguity that figures alone can carry. A figure can be altered by adding a digit or a zero, but a written phrase is far harder to change unnoticed, which is exactly why cheques and contracts ask for both. Spelling a number out is a small safeguard that has been used for centuries and remains standard practice in banking and law today.

It splits the number into groups of three digits and names each group.

1. The number is split into groups of three digits from the right.
2. Each group is spelled out as hundreds, tens and units.
3. A scale word is added to each group and the parts are joined together.

For other number tools, see the Roman numeral converter and the base converter.

Convert 1234 to words.

Result: the groups are 1 (thousand) and 234, giving one thousand two hundred thirty-four. A larger number like 1,000,000 is simply one million.

Each group of three digits gets a scale word.

Reading a long number is just a matter of reading each three-digit group and adding its scale word. This is why grouping the digits with commas makes big numbers so much easier to say.

Two systems have historically named the large numbers.

This converter uses the short scale, now standard in English-speaking countries. In the older long scale a billion meant a million million, which can cause confusion when reading old texts or translating between languages.

The Size of the Number

More digits mean more three-digit groups and more scale words.

The Sign

A negative number is written with the word negative in front.

The Style

Some styles add the word and, as in one hundred and one, or hyphenate differently.

Writing Cheques

Spell out the amount in words as banks require.

Contracts and Forms

Write figures in words for legal clarity.

Learning and Teaching

Check how large numbers are read aloud.

1. Misgrouping the Digits

Group in threes from the right, so 1234 is 1 then 234, not 12 then 34.

2. Confusing the Scales

In the short scale a billion is a thousand million, not a million million.

3. Forgetting the Sign

Negative numbers need the word negative at the start.

4. Adding the Wrong "and"

British style often adds and, as in one hundred and one; American style usually omits it.

5. Entering a Decimal

This tool writes whole numbers. For money, write the whole part and the cents separately.

The words are exact for whole numbers up into the trillions.

1234 is one thousand two hundred thirty-four. It splits into the group 1, read as one thousand, and 234, read as two hundred thirty-four.

Split the number into groups of three digits from the right, spell each group as hundreds and tens, then add the scale word thousand, million or billion for its position.

The short scale is the modern English system where a billion is a thousand million and a trillion is a thousand billion. This converter uses it.

Write the amount in words for the whole part, such as one thousand two hundred, then handle the cents separately as figures or words as your bank requires.

Yes. A negative number is written with the word negative in front, such as negative fifty for minus 50.

British style often includes and, as in one hundred and one, while American style usually leaves it out. This converter uses the shorter form without and.

In the short scale a billion is a thousand million. In the older long scale a billion meant a million million, which can cause confusion in old texts.

No. It writes whole numbers only. For amounts with decimals, convert the whole part here and add the fractional part separately.

No. The calculation runs in your browser and nothing you enter is stored or sent anywhere, unless you choose Save, which keeps the result only on this device.

• English numerals (Wikipedia).
• Long and short scales (Wikipedia).
• Names of large numbers (Wikipedia).