Free Testosterone
Free testosterone represents the unbound bioavailable fraction able to interact directly with tissues, bones, and muscles.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
1 – 210 pg/mL
1 – 8.5 pg/mL
50 – 210 pg/mL
What does a low result mean?
A modest dip can accompany sedentary periods, stress, or unrefreshing sleep quality.
What does a high result mean?
A slightly elevated level in females can point toward benign ovarian variations responsive to diet and exercise.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Does this accurately mirror the active bioavailable fraction for physical vigor?
- How does this harmonize with my total testosterone and SHBG?
- What training habits best support healthy natural levels?
Do you have a full blood test report?
Upload your lab document (PDF or image) to get an instant, clear explanation for every biomarker at once.
Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.