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Not medical advice. This website is educational only and does not provide diagnosis, treatment, supplement recommendations, TRT recommendations, or emergency guidance.

Educational tools, not diagnosis

Understand testosterone labs without falling into the supplement swamp.

Convert total testosterone units, learn what related markers can mean, compare age-context notes, and build a clean checklist for a clinician visit.

Use the converter Download tracker CSV

Calculator

Testosterone Unit Converter

Convert between common total testosterone lab units. Mayo Clinic Laboratories lists total testosterone conversion as ng/dL x 0.0347 = nmol/L.

ng/dL 500.00
nmol/L 17.35
ng/mL 5.00

Not medical advice: Reference ranges vary by lab, test method, age, sex, and clinical context. Use your lab's range and clinician interpretation first.

Lab context

Markers People Commonly See On Testosterone Panels

These are educational definitions. They are not medical advice, diagnosis, or instructions to self-treat.

Total testosterone

The total amount of testosterone measured in blood, including hormone bound to proteins and unbound hormone.

Free testosterone

The unbound portion. Some guidelines discuss free testosterone when total levels are borderline or SHBG issues are suspected.

SHBG

Sex hormone-binding globulin binds testosterone and can affect how much is available to tissues.

LH and FSH

Signals from the pituitary. They can help clinicians distinguish primary testicular causes from pituitary or hypothalamic causes.

Estradiol and prolactin

Related hormones that may matter in selected cases, especially when symptoms, medication history, or fertility concerns are present.

Thyroid, vitamin D, metabolic labs

Fatigue, mood changes, weight gain, and low libido are not specific to testosterone. Other health issues can overlap.

Female hormone education

Female Hormone Lab Context

Estrogen, progesterone, FSH, LH, prolactin, thyroid markers, cycle timing, medications, pregnancy status, and menopause stage can all change the hormone conversation. This section is educational only and does not diagnose or recommend hormone therapy.

Estrogen and progesterone

These hormones are involved in menstruation, pregnancy, menopause, bone health, and other systems. Lab interpretation depends on timing and context, not one screenshot.

Menopause questions

Menopause is defined clinically after 12 months without a period. After menopause, ovarian estrogen and progesterone levels are very low, but symptoms and treatment decisions still need clinician review.

Female Hormone Lab Guide

A conservative guide to estrogen, progesterone, FSH/LH, cycle timing, menopause context, and clinician discussion questions.

Age guide

Testosterone Questions By Age Group

Age changes the conversation. This guide is educational only and cannot diagnose or rule out a medical condition.

Practical next step

Build a Cleaner Doctor Discussion

Most people arrive with one lab screenshot and panic. Better: record symptoms, sleep, training load, medication changes, timing of blood draw, and repeat-test history. This does not replace medical care.

Download lab tracker CSV

Questions to bring up

  • Was my blood draw taken in the morning, and should it be repeated?
  • Are symptoms consistent with testosterone deficiency or something else?
  • Should LH, FSH, SHBG, prolactin, thyroid, metabolic, or sleep-apnea evaluation be discussed?
  • If fertility matters, what options should be avoided or discussed before treatment?
  • What monitoring would be needed if any therapy is considered?

Supplement evidence

Supplements: Lab Evidence vs Anecdote

Some nutrients matter when someone is deficient. Some herbs have limited human studies. Many claims are anecdotal, overstated, or unsafe. The supplement section categorizes each item by evidence quality and includes food/timing notes only when support exists.

Review supplement evidence

Rules for this section

  • Not medical advice or a recommendation to take anything.
  • No supplement is labeled as a guaranteed testosterone booster.
  • Evidence is separated from anecdote.
  • Safety, interactions, and clinician discussion are shown before hype.

Corrections and licensing

For educators, clinics, and publishers

Request factual corrections or discuss licensing the tracker structure for educational use. This site does not sell medical advice, TRT leads, supplement recommendations, or treatment decisions.

Contact / corrections

Commercial boundary

  • Evidence corrections and educational licensing only.
  • No patient-specific interpretation.
  • No supplement affiliate claims.
  • No clinic referral promise or lead sale.

Science articles

Testosterone Effects, Risks, And When Treatment Is Evaluated

Evidence-based articles written for education, not self-treatment. Start here before believing any “more testosterone equals better everything” content.

Lab Tracker Template

A CSV download page for organizing lab timing, markers, symptoms, and clinician questions.

Testosterone Blood Test Guide

What to organize before a clinician visit: morning timing, repeat tests, related markers, symptoms, and medication context.

Total vs Free Testosterone

Plain-English explanation of total testosterone, free testosterone, SHBG, and why lab interpretation is not a one-number game.

Female Hormone Lab Guide

Estrogen, progesterone, menopause, cycle timing, and clinician discussion questions for female hormone lab conversations.

Negatives Of Dosing And Misuse

Fertility suppression, high red blood cells, sleep apnea, prostate monitoring, blood pressure, hidden steroid risks, and why dose matters.

Lifestyle foundations

Useful Habits Without Fake Guarantees

These are general health habits often relevant to hormone conversations. This is not medical advice, and there is no promise that any one habit will raise testosterone for a specific person.

Sleep

Track sleep duration, quality, snoring, and daytime sleepiness. Sleep apnea is clinically relevant and needs proper evaluation.

Resistance training

Log training volume and recovery. Undertraining and overtraining can both create misleading narratives.

Body composition

Weight, waist, glucose, and lipids can be useful context for a clinician, especially in middle age.

Alcohol and medication review

Alcohol, opioids, steroids, some psychiatric medications, and other drugs can be part of the discussion.

Evidence standard

Sources Used For This MVP