Billion Abbreviation: How to Abbreviate Billion

Regardless of why you are trying to abbreviate the word “billion” you have come to the right place. In this article, we will teach you how to abbreviate the word and how to use the abbreviation for “billion.” Let’s first understand what billion means.

Abbreviations for “Billion”

Billion is commonly abbreviated in financial documents or letters. In these documents, billion is abbreviated as:

  • B (also b or b.)
  • BN
  • bn
  • bil(.)
  • bill(.)
  • bln(.)

It may also be abbreviated as bil. The most common abbreviation in business settings is B.

What Does Billion Mean?

The word “billion” is defined as the number 1,000,000,000. When plural, as in “billions,” it refers to multiples of 1,000,000,000. In its simplest terms, a billion is “one thousand millions” or “one thousand thousand thousands”. The word “billion” is most often used in reference to money, but is also frequently used in exaggeration. The word “billion” can be paired with the suffix “-aire” to form the word billionaire which indicates an individual worth at least a billion dollars.


She won a billion dollars in the lottery.

He has billions of coupons in his junk drawer.

The founder of the company went on to become a billionaire.

She just sold billions of dollars in stocks.

Is it B or BB for billion?

Unlike the abbreviation for million, which uses two Ms so that the number is not confused with the Roman Numeral M, billion is abbreviated with only one B.

How Do You Abbreviate Billion Dollars?

Abbreviating one billion dollars is done using the above abbreviations. Generally, the abbreviation with one B is preferred in finance. So a billion dollars is written as $1B.

One thing to consider is that when writing about large amounts of money, the words “billion” or “billion” are often left out altogether, as are superfluous zeroes. It’s then up to the reader to note the context, with the document stating the place value once at the beginning and not again.

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Examples of Abbreviating Billions

The bank’s budget is set at $32B. (The bank’s budget is set at $32,000,000,000 dollars).

We will allocate $10b to expansion operations.

The other $22B is yet to be determined.

The price of the house is $10.3B. (The price of the house is 10,300,000,000 dollars).

We gave $1 bln to the charity organization.

We sold one b. books and. around 2 b. magazines.

Synonyms for Billion

If you’re looking to avoid the word billion altogether, you won’t have much luck. The only other option is to write your entire number numerically, or even convert it to scientific notation.

The word billion is often used as a form of exaggeration, in which case it’s a bit easier to replace. For example:

He has billions of cars! / He has several cars.

She eats a billion apples everyday. / She eats quite a few apples everyday.

There were a billion flies outside our house. / There were countless flies outside our house.

When to Use the Abbreviation

The word “billion” is not a commonly abbreviated word, but its abbreviations still have their place. An abbreviation for billion is most often seen in financial documents and paperwork. Swap the word “billion” for “bil” or “bb” to avoid redundant language but to still be specific in how large numbers you’re working with. Other numbers, such as “thousand,” have more interesting abbreviations, such as “k.” The three letters “bil” are very clearly defined as meaning billion, so you shouldn’t run into any issues.

You can also use the abbreviation “bil” in casual conversation. You might hear something along the lines of “He dropped a couple bil on buying that company,” or perhaps “How many bils is that person worth?” This abbreviation works for both spoken and written dialogue, and is easily recognizable.

Common Number Abbreviations

thousandKk or Kthsnd(.), M
millionM or MMmmil(.), mill(.), mln(.)
billionBbnbil(.), bill(.), bln(.)
trillionTtntril(.), trill(.), trn(.), tln(.)

How Many Zeros in a Billion?

One billion has nine zeros and one one. For example, 1,000,000,000. However, billions range from 1,000,000,000 to 999,999,999,999 so there can be a maximum of eleven zeros if you are referencing a 100 billion (100,000,000,000).

How Do You Write 1 Billion in Numbers?

There are several ways to write one billion in numbers. The first is to write a 1 followed by nine zeros: 1,000,000,000.

You can also use exponents. The following exponents are equal to one billion:

  • 10^9
  • 1000^4

Also, depending on the country, locals might write one billion in different ways including the following:

  • United States and United Kingdom: 1,000,000,000
  • Switzerland: 1′000′000′000
  • Germany and other European countries:
  • Russia: 1˙234˙567˙890
  • China: 100,0000 or 100万0000
  • France and Australia: 1 000 000 000
  • Austria (historically, but not currently): 1,000,000.000
  • India (some systems) 1,00,00,00,000

How Many Commas Does a Billion Have?

Any number referencing a billion has three commas. For example, 10 billion is written in numbers as 10,000,000,000. Billionaires are sometimes referred to as belonging to the “three comma club“.

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