
It originates from the Roman numeral, M, for thousand, and MM is used to indicate one thousand thousands, which makes a million. It is commonly used in financial documents, or when discussing budgets, earnings, or other financial data. M and What is bookkeeping MM are Roman numerals where M stands for “one thousand” and MM is intended to denote “one thousand thousands”or “one million”.
- The abbreviation “M” is widely used and recognized, especially when referring to monetary amounts.
- This methodology differs from everyday slang, which takes the first letter from each word as the primary abbreviation.
- It is commonly used in financial documents, accounting, and stock market where space is a concern.
- Some style guides might opt for the complete “million” or have their own prescribed abbreviation, so it’s essential to consult the relevant guidelines before finalizing your writing.
- For instance, “$5MM” abbreviation to indicate “five million dollars” would be better accepted in the US than in the UK.
The Chicago Guide to Copyediting Fiction, by Amy J. Schneider
- Certain abbreviations, such as “M,” have become part of the public lexicon through common usage, leading to a further acceptance of such use.
- It can fit in advertisements, headlines, graphics, and other space-restricted collaterals.
- Formal abbreviations such as ‘M,’ ‘m,’ or ‘mil’ are preferred for professional use, while informal expressions like “milly,” “big one,” or “megabucks” are used in more relaxed settings.
- Classical scholars used symbols for denoting quantities and measurements.
The use of two m’s to denote millions is becoming less common. Frequently, in finance and accounting, an analyst will use k to denote thousands and a capitalized M to denote millions. If you’re confused about the letter designations that stand for thousands and millions, you’re not alone.

Comparison of “M” vs. “MM” Usage
- I have seen million, billion, and trillion abbreviated as M, B, and T respectively.
- For instance, in technical writing, you may prefer to use “M” instead of “MM” as symbols and their use may depend on the field you are in.
- However, if you’re having a casual conversation with friends, you might opt for the more relaxed colloquial expressions mentioned earlier.
- Uppercase abbreviations are standard in the United States, while lowercase abbreviations are more common in some countries overseas, so keep that in mind when choosing which to use.
- These regional variations highlight the importance of understanding local customs and practices when communicating numerical information.
- Based on this, if you retire at age 65 and live until you turn 84, $1 million will probably be enough retirement savings for you.
Some abbreviations for Online Bookkeeping million options may surprise you, as is also true for some of the other large number abbreviations. Master the core techniques of business valuation with our Valuation Courseideal for finance students, analysts, and professionals. Learn how to apply methods like DCF, comparable company analysis, and precedent transactions to assess a company’s worth accurately. Yes, “M” is accepted in formal business and financial writing. The finance, business, and informal sectors frequently use “M” for million.
- It equals 1,000,000, which means six zeroes are suffixed after 1 to make the figure in a million.
- The finance, business, and informal sectors frequently use “M” for million.
- The example below shows how figures can be portrayed in millions.
- If you have to spend time counting how many zeroes are after a number to understand the full amount, it’ll take extra time to understand what is being communicated to you by an accountant.
- If anyone uses that terminology it’s not used in the US or it’s pretty obscure.
The Chicago Guide to Fact-Checking, 2nd Edition

I saw a headline recently in The Daily Journal of Commerce that read the new downtown post office was to be built for $89M. In the world of accounting and financial analysis that reads $89 thousand dollars, but we know from context that the headline writer meant $89 Million dollars. We sometimes have to code switch and use context to determine what the author is telling us.

Various civilizations use unique forms of abbreviations throughout history. Classical scholars used symbols for denoting quantities and measurements. And during the middle ages, monks practiced compressing text in manuscripts to save time, effort, and resources. The use of abbreviations dates back to ancient times and has been in use ever since.

K Is Meant To Stand For Thousand Isn’t It?
As with “Okay,” the use of K indicates acceptance, agreement, approval, or acknowledgment. 100,000,000 (one hundred million) is it m or mm for million is the natural number following 99,999,999 and preceding 100,000,001. East Asian languages treat 100,000,000 as a counting unit, significant as the square of a myriad, also a counting unit. M1, M2 and M3 are measurements of the United States money supply, known as the money aggregates. M1 includes money in circulation plus checkable deposits in banks.