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 1000 ng/dL, SHBG 45 nmol/L, Albumin 4.3 g/dL: Free testosterone 195.8 pg/mL; Free fraction 1.96 %; Bioavailable testosterone 475.3 ng/dL; Free testosterone 678.7 pmol/L.
About the inputs: Total testosterone, SHBG, Albumin