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    Why Do Some Feel Good on Large Doses of Hormones?

    So Im reading a lot about testosterone and TRT and managing the side affects of aromatisation. So why do those huge bodybuilders not feel like shit and fatigued and not be able to go to the gym when they have like crazy T levels.. (would their Testosterone be like 4000+) Also what about...
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    Pre-TRT Checklist - What to Test/Check

    The lure and promises of Testosterone seem too good to be true , nothing ever is, as Nelson has said TRT is not a silver bullet. I thought I would make a list of things that people could check for before going down the TRT route. I have read a lot about TRT not working well for others. (many of...
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    Free Testosterone Calculation are there different methods.

    Just a question on Free Testosterone. Is there a specific test for Free Testosterone? or is it calculated using SHBG and the Albumin reading in your blood. I see calculation methods using Albumin saying that it is usually binded to testosterone, but how is it known that 100% of Albumin is...
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    Testosterone level of 415 not that low? candidate for TRT?

    Im new to this site here. I bought some books on TRT which pointed me to this forum, and just bought Nelson Vergels book on kindle. Im 41, always worked out , the last 2 years though feeling fatigue, lower libido, really bad Mind fog. feel aches in my hands and inflamation. I eat pretty healthy...
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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