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I can't find in Google any list of the money abbreviations used by English people.

I need to know how to continue this list:

  • 1,000 = K

  • 1,000,000 = M (or KK for odd speaking)

What is the next, maybe "B" of billion and also "KKK" for odd speaking?

What are the abbreviations for the other long known numbers?

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  • en.wikipedia.org/wiki/Milli-
    – NS.X.
    Aug 17, 2013 at 9:27
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    @NS.X. We need to be careful with that when it comes to money. While K is indeed used for thousands in money, and M is used for millions, I think B is used for billions (not G, as is used in computer memory). For example, see this headline and this headline. Likewise, it's T for trillion.
    – J.R.
    Aug 17, 2013 at 10:28
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    Americans never use "KKK" to mean billion. The initialism "KKK" has a very controversial and negative connotation in American culture- google it.
    – evan
    Jun 4, 2014 at 6:36
  • @evan: I would suggest using Wikipedia or similar. Searching for KKK on Google, if someone is at work or school, might make HR come asking questions.
    – K.A.Monica
    Oct 5, 2017 at 22:55

2 Answers 2

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Practice varies from publisher to publisher, but these are common abbreviations:

  • K for thousands of dollars, Euros, etc. is a relatively recent adoption from computing and is not yet much used in formal contexts.
  • The usual abbreviations for million and billion are M (or m) and B (or b); you may also encounter Mn (mn) and Bn (bn), particularly with commodities other than money. Be careful of your audience, however; the US employs the 'short scale', in which each successive term represents one thousand times the previous term, and the UK has officially been on the short scale for a generation; but many other countries employ the 'long scale', in which each term after a million represents one million times the previous term.
  • I have seen T, Tr, tr, Tn and tn for trillion. I advise the forms with r rather than n, since tn may be read as tons or tonnes.
  • Money quantities of larger orders of magnitude are so rarely encountered that I have never seen an abbreviation for quadrillion.
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  • Thankyou so much, but then you can tell me how would be the abbreviations for those quantities even if them exist or not?: quadrillion, quintillion, sextillion, septillion. how would abbreviate them you please? Aug 17, 2013 at 14:01
  • @ElektroHacker I wouldn't abbreviate them with money, even if I had occasion to. With other matters I'd use decimal powers: 10^15, 10^18, 10^21, and so forth (or the superscripted versions, which won't display in a Comment). Aug 17, 2013 at 14:09
  • sorry if I'm annoying but the thing is I'm programming an application which has a function that returns the abbreviated quantity, for example with "1.200.000" the function returns "1,2 M", so I need to know how would be a "quadrillion, quintillion, sextillion and a septillion" abbreviated (using letters) for this problem. so I prefer to know the opinion of a U.S. person, rather than invent me the abbreviated letters based on their names. Aug 17, 2013 at 15:43
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    @ElektroHacker Nope. Three digits is too short to abbreviate. Aug 17, 2013 at 17:42
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    @ElektroHacker: For dollars, it's written $999, not 999$. For cents, it's 99¢.
    – J.R.
    Aug 17, 2013 at 19:19
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For this purpose, I think you can use the symbols used in metric prefixes as follows:

10*1 Deca (D or da) 10 Ten / Ten

10*2 Hecto (h) 100 Hundred /Hundred

10*3 Kilo (k) 1,000 Thousand /Thousand

10*6 Mega (M) 1,000,000 Million /Million

10*9 Giga (G) 1,000,000,000 Billion /Milliard

10*12 Tera (T) 1,000,000,000,000 Trillion /Billion

10*15 Peta (P) 1,000,000,000,000,000 Quadrillion /Billiard

10*18 Exa (E) 1,000,000,000,000,000,000 Quintillion Trillion

10*21 Zetta (Z) 1,000,000,000,000,000,000,000 Sextillion/ Trilliard

10*24 Yotta (Y) 1,000,000,000,000,000,000,000,000 Septillion/ Quadrillion

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    This is incorrect. Money is not referred to with metric prefixes. Jun 10, 2015 at 22:57
  • Hi, I believe that simply saying a solution is incorrect does not solve the problem. In this case, it seems that there is no absolutely correct answer. It is like choosing between bad and worse! If a programmer uses the above solution, does it cause any harm to the program or to the English language? if not, it seems logical to me to use a similar (or close) answer for a specific purpose. (I hope I could have explained what I mean through my poor English)
    – shirvanian
    Jun 13, 2015 at 17:06
  • Sorry, perhaps incorrect was an unclear way to put it. There is a standard way of abbreviating large quantities of money, as detailed in StoneyB's answer, and the metric abbreviations are not the standard. Even in a programming context it's important to hold to known standards so that those who work on the code in the future can understand it easily. Jun 14, 2015 at 3:37
  • I also prefer using a standard way but as StoneyB explained, "standard abbreviations for those do not exist". Then, J.R. proposed using "Qd,& etc. for this case and asked that: "In the context of computer output, does it really matter if those are "standard" abbreviations?" Then I asked myself why one should improvise a set of abbreviations if there already exists a very close set of abbreviations which we may use for this purpose? In an academic or expert context, which one is easier to understand: "one Peta or P dollars" or "one Qd. dollars"? (note that Qd. is not standard but P somehow is)
    – shirvanian
    Jun 14, 2015 at 14:33
  • Yes, I would say using P, E, Z, Y would be OK for > 10^15, since there are no standard abbreviations. However, there are standard abbreviations for 10^3-10^12. That's the main part of your answer I disagreed with. Jun 15, 2015 at 1:49

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