Hi,The number of grafts needed for a hair transplant varies depending on the amount of hair loss and the size and density of the donor site. Normally we use 1500 to 4000 grafts.Dr. Robert Jones
This depends on the size of the area that you need to have restored, the density you wish to achieve, hairline design and more.Your best bet is to send in your photos to a few of the top hair restoration surgeons in the world for online consultations and compare the different clinics evaluations.