I never knew buying a toilet for an old house could be so difficult

Turns out we have a 14 inch rough in (distance from back wall to hole in floor) and the standard now is 12 inches.  The first toilet we purchased from our Home Center was for a 12 inch rough in. It was about 4 inches from the wall and gave no clearance for the sink directly across.

We had to special order a round front (not elongated) toilet with 14 inch rough in.  And there aren’t too many out there. They are mainly discontinued- thanks a lot.