Shouldn't a Roth IRA accumulate more than 1 cent of interest per month?
There are a couple of misconceptions I think are present here: Firstly, when people say "interest", usually that implies a lower-risk investment, like a government bond or a money market fund. Some interest-earning investments can be higher risk (like junk bonds offered by near-bankrupt companies), but for the most part, stocks are higher risk. With higher risk comes higher reward, but obviously also the chance for a bad year. A "bad year" can mean your fund actually goes down in value, because the companies you are invested in do poorly. So calling all value increases "interest" is not the correct way to think about things. Secondly, remember that "Roth IRA fund" doesn't really tell you what's "inside" it. You could set up your fund to include only low-risk interest earning investments, or higher risk foreign stocks. From what you've said, your fund is a "target retirement date"-type fund. This typically means that it is a mix of stocks and bonds, weighted higher to bonds if you are older (on the theory of minimizing risk near retirement), and higher to stocks if you are younger (on the theory of accepting risk for higher average returns when you have time to overcome losses). What this means is that assuming you're young and the fund you have is typical, you probably have ~50%+ of your money invested in stocks. Stocks don't pay interest, they give you value in two ways: they pay you dividends, and the companies that they are a share of increase in value (remember that a stock is literally a small % ownership of the company). So the value increase you see as the increase due to the increase in the mutual fund's share price, is part of the total "interest" amount you were expecting. Finally, if you are reading about "standard growth" of an account using a given amount of contributions, someone somewhere is making an assumption about how much "growth" actually happens. Either you entered a number in the calculator ("How much do you expect growth to be per year?") or it made an assumption by default (probably something like 7% growth per year - I haven't checked the math on your number to see what the growth rate they used was). These types of assumptions can be helpful for general retirement planning, but they are not "rules" that your investments are required by law to follow. If you invest in something with risk, your return may be less than expected.