How much money is in a bank's vault?

There is NO Money in a bank vault, except for coins.



The amount of currency in a bank vault will vary massively from bank to bank. Normally banks try to have enough to cover all anticipated cash withdrawal needs of their customers, which varies according to how busy that particular bank and branch is, and time (for instance more will be needed on hand on Fridays when many people cash paychecks).


But curiously that currency, meaning paper dollar bills or "Federal Reserve Notes" are actually not considered "money" when they are sitting in a bank vault. They are only counted as money when they are circulating. Currency has no intrinsic value, it is only a way of keeping track of value - a "note", the same as an accounting entry in a bank ledger. When a dollar bill is sitting in the vault, the value is noted in the ledger, not the note itself.


Coins are another matter - they have an intrinsic value of their own.


So to answer the original question, there is no money in a bank vault, no matter how much currency is there, except for the value of the coins, which represents a rather small percentage of the banks assets.