The purpose of this research is to personalize HRTF(Head Related Transfer Function) without directly measuring the HRTF of an individual person. HRTF is used to render 3D sound using headphones. The process of directly measuring the HRTF of a person takes more than an hour inside an anechoic chamber. This makes it almost impossible to commercialize personalized HRTF headphones. This research uses individuals body characteristics and data collected from a 3D sound hearing test to estimate personalized HRTF.