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Few caveats:
I am not on TRT.
Apparently the “Testosterone II and SHBG are assayed on the Siemens Centaur/Atellica”. Not sure if that’s important.
Felt like shit since about 18 years old. I had a huge drop in wellbeing on every metric when I hit about 18. I had my testosterone tested when I...
I wanted to give some of you long-term users a quick quiz, just so we can develop some neat anecdotal data points from this forum.
If you have the time, please answer the following questions: (I apologize if they're a touch personal)
1. What is your age?
2. How long have you been on TRT?
3...
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.
