TRTFree testosterone calculator
Vermeulen estimate using measured total testosterone, SHBG and albumin. Enter values from the same sample.
Interpret with your clinician and use a method-specific reference interval. Vermeulen et al. →
05 / TOOLS
Make the next draw easier.
Estimate free T from your report or put your clinician’s follow-up date on your calendar.
Bloodwork date planner
Use the date and interval agreed with your clinician. Download an event for your calendar.
TRT follow-up depends on the treatment and your clinical history. Read the monitoring guide →