The money velocity is the average number of times a unit of
money is used in a specific period of time. For example, you could
say the annual money velocity of a US dollar bill is 3 (any dollar
bill, on average, was used three times this year). Money velocity
can be calculated using a specific formula:
V = ( P * Q ) / M ; V = Money velocity, P = aggregate Price
level, Q =
aggregate quantity of goods and services, and M =
total amount of money (money supply).
The formula can also be rewritten like so:
M * V = P * Q; where P * Q equals the nominal GDP.