What is the total amount of money in the World?

http://en.wikipedia.org/wiki/Gross_world_product

However much there is, there's always someone who wants more...

Yes. Value is created and destroyed. When you grow a crop, you have made something of worth where there was nothing before. When you then take the wheat and make bread, you have increased its value. When you eat the bread you remove that value. Money is just an artificial exchange medium we use to transfer value so it goes up and down as we create and destroy.

What is the total amount of money in the World?

$37.53 canadian

Your pocket is not the World.

That's really a meaningless question the way it's worded. Are we talking about actual "money", i.e. artifacts that are either printed or minted? Or are we talking about total assets and their value? In either case, the answer is meaningless inasmuch as value is never a constant and a new batch of money can always be printed/minted to add to the confusion.

I am asking about both kind of money . But even if it is not constant, is there still a limit? Like, if you ask "What is the total amount of money in the World, on Thursday, January 8, 2015 -4:13pm", would i get a defined result? Or is it more complexe?

So, if you make something of worth (the wheat and bread), there is need to create money; with this money, you buy cars (to Bob); at another time, you sell the bread, which get eaten, the value is removed. Do this mean that the money you gave to Bob has lost this value, (in his pocket)?

Money is merely a token for the exchange of goods and services. Its "value"depends on the availability of goods and services and is negotiable according to shifts in that availability. Obviously, as the world's population increases the total amount of goods and services tends to increase, provided that the world's natural resources continue to underpin demand.

The way you teach children about money is to imagine a barter community in which the plumber is offered tomatoes from a grower in exchange for his work. The plumber doesn't like tomatoes but takes an IOU note from the grower for "ten pounds of tomatoes" which he takes to the baker and exchanges it for bread. The baker then has the option of claiming the tomatoes or exhanging the note with somebody else, and so on. That IOU note is "money", whether it promises "tomatoes" ,"gold" or anything else considered "valuable".

The answers to this question thus far have been somewhat non-responsive: obviously money supplies can change over time. The poster presumably had reference to some fairly narrow period (no larger than a year) and was concerned with an average.

There are obvious objections nevertheless: the U.S. Federal Reserve alone has several definitions of "money supply"; but again, the naivety of the question (as well as subsequent clarification) suggests a common-sense approach based on currency in circulation plus demand and savings deposits at commercial banks.

Somebody took a stab at this back in 2009; the article makes reference to data compiled from the most common monetary measures M0 through M3 for 102 currencies representing 138 countries.

http://www.marketoracle.co.uk/Article11576.html

A bit out of date, but some sense of the rate of expansion is indicated and crude extrapolations on that basis are possible. I make no claims as to the accuracy of this source, but at least some attempt is made to address the question.