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  1. R

    Thyroid Results

    All - recently had thyroid tests done and t4 direct was .77 (range .82 -1.77), TSH was 3.65(range .45 - 4.5) and t3 uptake was 23 (range 24-39%). Dr says things look fine; any advice would be appreciated. I am on TRT but still have brain fog and am tired.
  2. R

    Updated Labs Looks Good - I think.

    Hi Guys. So I just had labs taken after being on my new protocol for about 5 weeks. I wanted to test a little early as my previous test had my Hematocrit at 57. Overall I am pleased with my test results but I still am very foggy headed. I wanted to share my results to see if anyone has any...
  3. R

    Hematocrit

    So I have been taking daily injections (14mg) of testosterone cypionate for 3 months and recently had blood work done. My hematocrit is 57 and I donated blood the week before my blood was drawn. Really high, right. At the time of the labs, I was on t only. Actually, my new dr ran all the...
  4. R

    Can High Estradiol Cause Mental Fogginess and Fatigue ?

    All - been taking daily testosterone injection of 14mg per day (roughly 100mg per week). SHBG is 15, testosterone is 600 and estrodial is 42.1 (range of 8 to 35). Feel terrible; foggy headed, low energy. Can estrodial of 42 be the cause. Have ordered a full panel through defy but was curious...
  5. R

    Updated Results, Low SHBG

    All - I am currently working on getting set up as a new client with Defy. They have all required tests but I have to donate blood to bring HCT down to 48 to 50 % prior to them seeing me as a patient. I am interested in getting opinions on the blood levels posted. My local Endocrinologist who...
  6. R

    218 Testosterone But Doc Says not Hypogonadism

    All - Attached find the labs that I have had done over the past few months. I have had two Testosterone readings under 230 but the Doc says I do not have Hypogonadism because my Bioavailable Testosterone is normal. I do not meet with her until next week but wanted to get your opinion. I am...
  7. R

    Doctor Told me to Stop TRT to Get Baseline Tests

    Hi All - Doctor asked that I go off testosterone injection for 2 months to obtain baseline tests that my previous Doctor did not order. I was only on T injections for 1 month. Question is whether or not I have to be off for 2 months to obtain accurate baseline tests or can I get accurate...
  8. R

    Bioavailable Testosterone Test

    Hi Guys I am getting ready to request that my doctor order additional blood tests and was wondering if I have a Bioavailable Testosterone test done, is the Total Testosterone and Free Testosterone still required. My doctor said the Bioavailable tells the whole picture and takes into account...
  9. R

    2nd Opinion

    Hi All - I am 50 years old and have had symptoms of TRT for over 1 year. I do not drink, smoke or do any drugs and have never done steroids in my life. I eat a pretty balanced diet and used to run about 20 miles per week but since I am tired all the time, I stopped. About a month ago I went...
TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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