# Can we figured out the total money supply using MB? [closed]

If we look at the total in the federal reserves account Here at the moment is about 3 trillion and if the reserve requirement is 10% does that mean that there is at least 30 trillion out there in money supply?

I know that there can be excess reserves, but give the fact that the reserves have increased dramatically in shot period of time, we can assume that there was a shortage and not excess of supply meaning the 3T were needed to back up around 30T.