I first started TRT with far too much for far too long 250mg of T Cyp/week. None of my symptoms (crippling fatigue, very low libido etc. improved) Browsing through the internet, I even tried Aromatase inhibitors incase high E conversion was preventing benefits, but that didn't work. When I...
I've been very foggy after dealing with a thiamine paradox reaction that won't go away (long story - I have CFS, so used thiamine to treat it). Hence this morning, instead of TRT I pinned Estradiol Valerate without realising. The dose was 20mg - which is roughly equivalent to 40 oral 2mg...
All of us are following our protocols quite blindly, trying to optimise but unsure what values to optimise to. The lab ranges vary between countries and labs. The NHS for example sets it upper T limit at 750 - whereas many people in the US naturally have higher levels than this and are perfectly...
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.
