You’ll learn about testosterone in general, how to increase it naturally, testosterone replacement therapy, testosterone boosters, treatments, anastrozole, erectile dysfunction and more. Click here for more information: Testosterone...
Testosterone replacement therapy (TRT) or anabolic steroid (AAS) use impairs sperm production (spermatogenesis) by promoting negative feedback on both the hypothalamus and pituitary gland. This reduces the pulsatile secretion of...
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Most men have a lot of questions before starting testosterone replacement therapy. Here are some of the few that are commonly asked in sites like ExcelMale and Quora. How do I identify the best injection site for testosterone in the...
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Table of Contents Video Transcript: Low Testosterone Hormones change as we age. As you can tell, these are different hormones: estrogen, thyroid, progesterone, insulin, testosterone, cortisol, growth hormone, and this is not only male...
Table of Contents Are you wondering if TRT and acne correlate with each other? There are a handful of possible side effects of TRT (testosterone replacement therapy). While most side effects of TRT are manageable, if not avoidable, some...
James Semmens et al. Metabolism Volume 32, Issue 5, May 1983, Pages 428–432 Abstract The significance of sex hormone levels in determining variation in high-density lipoprotein cholesterol (HDL-C) concentrations was studied in healthy Seventh...
As shown in the figure above, about 2 percent of the testosterone in the body is active. This “free testosterone” is not attached to binding proteins that would prevent it from interacting with its receptor. About 40 percent of the body's...
One of the major concerns for the prescription of medications containing testosterone (T) in the aging men with T deficiency (TD) is prostate disorders (such as benign prostatic hyperplasia, BPH) and their related symptoms (lower urinary tract...
Testosterone (T) deficiency (TD; hypogonadism) has deleterious effects on men’s health; negatively affects glycometabolic and cardiometabolic functions, body composition, and bone mineral density; contributes to anemia and sexual dysfunction; and...
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.
