How do I smoothly transition vinyl plank to tile?
You really have two general options for a &quot;seamless&quot; transition from tile to plank.

Basic &quot;L&quot; trim - pictured below.   You will need to install this about 1/8&quot; from each and caulk in between.   It should be installed slightly LOWER than the height of the planks and tile - 1/16&quot;, 1/8&quot; be OK.   Your two floors must be pretty much exactly the same height or the &quot;L&quot; trim method will cause foot scrapes.



Bullnose trim - my general suggestion for most as it is more forgiving for slight height misalignments.   Your planks will go into the bullnose and the tiles will be about 1/8-1/16&quot; with a caulked gap.