M.J said: Just wanted to share this, since the time I added b12 to my protocol and things got much better. Current protocol 75mg once weekly sustanon 250-300 HCG EOD or E2D FSH 75. I am ... Read more >>
Johnny Test said: Anyone know if I need to taper off MK-677 when I decide to discontinue it? I've been on 5 weeks and am going to stop it after 8 weeks. I'm at 25mg a day. Thanks in advance. Read more >>
Mfurches said: Has anyone experienced this ? My muscles feel almost like they have been worked to exhaustion . I also generally feel like crap. I'm currently on 20mg Ed schedule of test c. Not ... Read more >>
Noway08 said: I have been on a T program for several years. I left a local Men's Clinic and started with Defy a year and a half ago. I am on daily doses of 20 mg and inject in the evenings. ... Read more >>
Mfurches said: Just got some labs back . Iron is at the bottom of the range and iron saturation is below range. Does test cause low iron typically ? I just started an iron supplement . How long ... Read more >>
madman said: Purpose: Priapism is a persistent penile erection that continues hours beyond, or is unrelated to, sexual stimulation and results in a prolonged and uncontrolled erection. Given ... Read more >>
Kimpe said: Hi! Surely there has to be guys here who suffer from migraines, how did trt affect them? I'm asking because trt seems to trigger migraines for me, and I don't understand why. There ... Read more >>
Damndocs said: Been on about 4 months now 30Mg test cyp EOD. My semen volume is almost null. Before trt was definitely 5x the amount and more watery. Now almost too thick. What am I doing wrong. ... Read more >>
Nelson Vergel said: There are several things that your doctor may fail to tell you when you start testosterone replacement therapy (TRT): 1- TRT decreases your sperm count. 2- TRT may increase your ... Read more >>
mcs said: Has anyone noticed an increased in glucose readings, specifically fasting glucose, after taking any thyroid replacement meds for some time (i.e. Armour, Synthroid, etc.)? According ... Read more >>
Primarybot said: Click here to view on the web Highlighted posts Patient Satisfaction with Extra-Tunical Graft for Peyronie's Disease (graphic pics) September 04, 2021 * 6 posts * 76 views When ... Read more >>
Fortunate said: Interesting. A while back, I was with Dr. Crisler. I now consult both with a local doc and Defy. My local doc prescribes it. I believe it is covered by my insurance, so I don't ... Read more >>
Test newb said: Just a quick follow up after researching this some. Give the vials a little swirl (not shake) before loading the syringe. peptides and settle toward the end of the vial and you ... Read more >>
MarkM said: I am injecting 24 mg per day which is actually a little high for a daily dose. Many who would take that does per day would have much higher levels of T than I do. I adjusted my ... Read more >>
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.
