1.47, 1.5, 1.55...  Not a big difference. 

I have six different printed references on BSA.  They each give a slightly different answer.  These are tiny details.  Taty’s BSA is right around 1.5 square meters.  The endo was giving a ballpark figure, which is appropriate in this context. 

Don’t make yourself crazy to the nearest hundredth.  You’ll lose perspective.  :)