Be careful with this: The projections are gross (ie not inflation-adjusted) and the advice buried in the explanatory text below does not sufficiently discuss this issue. It says you can do a "simple" calculation by applying one year's worth of inflation versus a compounded rate of return. Assuming historical inflation rates, the value of the savings it projects will be significantly eroded compared to what it shows.
Edit: And as others have pointed out below, the returns assumed are unrealistically optimistic. Be warned about basing your retirement planning on this.
Edit: And as others have pointed out below, the returns assumed are unrealistically optimistic. Be warned about basing your retirement planning on this.