Current Flow is the flow rate of electrons. One ampere of current is a flow rate of 6,250,000,000,000,000,000 electrons per second. As you can see, this is a very large number and the ampere (amp) is a large unit of measure. We normally use the "milli" or even "micro" multipliers to scale down this large unit.

There are two ways of referring to the flow of current: Electron versus Conventional. Don't get this confused!