I've heard the most accurate way to find your free & bio-available testosterone levels, is from your total testosterone, SHBG and albumin levels and input them HERE.

I was wondering how accurate the results are from Labcorp test #081786 "Testosterone, Free, Serum (Equilibrium Ultrafiltration) With Total Testosterone"

I had that test done recently, and it showed I have 4.38% free - which I thought was rather high? I've had several of the TT/SHBG/Albumin calculations before and I usually end up around 3%.