Just for clarity, a ROTH IRA is an account registration. Many investments may carry the ROTH registration status including money markets accounts, savings accounts, brokerage accounts, and mutual funds.

Amounts that were contributed tax deferred (as in the case of a traditional IRA) are considered taxable income in the year that they are converted to a ROTH IRA. They are not penalized if they are converted to a ROTH within 60 days.

401(k) plans can not be converted to a ROTH status. Only traditional IRA’s can be converted to a ROTH status. Once a 401(k) is rolled over to a conversion (Rollover) IRA, it can not be rolled over again into a ROTH.

ROTH contributions are taxable in the year the money was earned, but contributions and earnings are not taxable when withdrawn at retirement (59.5 years of age and older).

Traditional and 401(k) contributions are tax deferred when contributed, but contributions and earnings are taxable when withdrawn at retirement.

your mixing apples and oranges.

the gov’t has two kinds of IRA’s, regular and Roth.

a bank has investment opportunities that are allowed to be used as IRA’s, (either a regular IRA or a Roth IRA) one of which will be a money market IRA.

the difference between the Regular IRA and a ROTH IRA is a question of when you get taxed on the $$$.

Your "money market IRA" is just the investment vehicle your bank is using for your IRA.