#labs

  1. J

    Lab results 5 weeks after stopping TRT

    Hi everyone, I was on TRT for 8 months and got off about 6 weeks ago but I had my labs drawn a week ago. I wanted to share them and get some insight. I am actually almost back to my baseline already with no PCT. Not that my levels are anything great. I’ll attach pictures. I have noticed my fsh...
  2. J

    Labs: what would cause my E2 to be so low?

    I’ve come off of TRT, and been off since February. Total t: 534 ng/dl Free t: 62.5 pg/ml Estradiol: less than 15 Does my free T look bad? My whole reason for starting TRT years ago was because of my low free t and very high SHBG. But my estradiol is very low. I have very very low libido. No...
  3. T

    Lab Results 14 Weeks Into Treatment.

    Lab results 14 weeks or so into treatment. My doctor has had me on 200 mg / week since day one. I have low SHBG (10), so by the third week I opted to change my protocol from the doctor's recommendation of 200mg once a week to EOD injections. Energy is stable, libido is going strong, lifts are...
  4. J

    45 Considering TRT: PCa History & Rate My Labs - Feedback Pls

    I'm 45, feel fine, but definitely lower libido impacting my relationship of 4 years, not retaining muscle as much, belly fat harder to get rid of, a bit increased anxiety, so symptoms of "lower" T, but my labs are "normal", EXCEPT my E2 is too low for me. Optimal E2 is around 25-30 for me...
  5. T

    Advice on TRT Dosing and managing some side effects

    Hi - I am looking for advice to help dial-in TRT medications as well as a couple of current side effects. By way of background I am 61 yo active white male diagnosed with low T when I was 53. Classic presentation during late ages 45-53 despite active lifestyle (weight training 3-4 week; spin...
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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