yes you can see table 1-4 page 22 in IRS pub 590-A for allowed rollovers
https://www.irs.gov/pub/irs-pdf/p590a.pdf
note that a portion of the rollover to the Roth may be taxable
the rule is that the amount of the distribution that would have been included in income if it were not converted to a Roth IRA is included in income in the year of the conversion. thus any part of the conversion that is attributable to basis is not included in income.
