Free testosterone, calculated
Enter total testosterone, SHBG and albumin from your lab report. The Vermeulen equation, with the paper it comes from and the constants it uses shown.
With Total testosterone 800 ng/dL, SHBG 45 nmol/L, Albumin 4.3 g/dL: Free testosterone 148.1 pg/mL; Free fraction 1.85 %; Bioavailable testosterone 359.6 ng/dL; Free testosterone 513.5 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin