total t is good low free t

  1. J

    Total T > 1000 ng/dl (very high), Free T < 65 pg/ml (very low)

    Hi, I'm a 40yo man. I just got tested for Total and Free T. My Total T came out at 1015 ng/dl out of a lab reference range of 45 - 975 ng/dl. My Free T came out at 63 pg/dl out of a lab reference range of 47 - 225 pg/ml My doc didn't want to test SHBG or Estradiol until we got Total and Free...
  2. L

    Declining free T levels

    Before I started on TRT eight months ago. My free T was 5.1 range is (6.6-18.1 pg/ml) with total T at 462 ng/dl range (264-916) these are LabCorp ranges. After starting on .25ml of Cypionate 200mg/ml every seven days. I saw my total and free T jump way up. LabCorp Free T was 10.5 pg/ml...
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.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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