Most hair loss is on the crown. How many grafts would I need? (Photo)

You need an examination for a recommendation that fits with your realistic expectations.  You can probably have 1000 to 2000 grafts but it will not be your orginial hair density and you will still notice some thinning.

 A scalp  reduction  in your crown if the scalp is loose will decrease the number of grafts you require by more than 50%. See a very experienced scalp reduction surgeon for an evaluation. 

Thank you for posting your question and photo. From the looks of the picture, it looks like you can use anywhere from 2500 to 3000 grafts. Normally, the crown size is 153 cm squared, and with density of atleast 20  to 25 grafts per cm, it can easily use roughly around 3000 grafts, plus the difference of what is already there, and what is needed. Thank you again.