I had my total testosterone checked at Quest and Labcorp exactly 24 hours apart.
Quest was 149
Labcorp was 1018
I take a daily compounded cream and test 24 hours after application
How can the numbers be so far apart?
I’ve been on cream for a little over 2 years. I started at 50mg then went to 60mg.
Been on 60mg over the last year with T ranging from 500 and creeping up to 984. Felt fantastic at the higher end of the range. When the 984 result came back my doctor lowered my dose to 50mg. The 984 result was 4...
i started TRT in December 2018. My total T was 184 (289-894). I was put on a 50mg compounded cream by choice. I retested 2 months later at 530 and feeling much better. Shortly after I started feeling bad again. Was retested 4 weeks after the 530 test. Now I’m 384. The doctor raised my dose to...
Im 39, 6’0” and 160 lbs. I’ve been reading a ton of good information on this site! I have not started TRT as I’m going through a Urologist who does not care about my symptoms just my numbers. By numbers I mean total testosterone only with a range of 196-691 and the test must be done one week...
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.
