From what I understand, roth contributions can be withdrawn penalty free 5 years after they have been contributed into the roth account. However, I have not been able to find a clear answer on how 401k to roth conversions are defined. For example, if I roll a 401k account with 100k (of which 50k was my personal contribution, 25k employer match, and 25k growth) into a roth account. Obviously I would pay taxes on the 100k but after 5 years how much can i withdraw? 50, 75, or 100k?