Million Dollars Calculator Enter your starting balance, your ending balance, monthly contribution and interest rate. This will find out how long it will take until you reach that goal (default = $1,000,000). Of course that million won't be worth very much way, way in the future. Put in an inflation factor and this will show you what it's worth then. Initial Amount $ Monthly Deposit $ Average Annual Return % Average Annual Inflation % Inflate Deposits? YesNo Final Amount Desired $