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    Low TSH and FT3/FT4 on levo. Switching to Naturethroid?

    Hey guys, I posted a while back when I was diagnosed with Hashimoto's. I've come a long way, but my energy levels are still not anywhere close to what they were. I'm now up to 125mcg of levothyroxine daily. At first it seemed like I was making T3 nicely, and that perhaps T4 monotherapy would...
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    Elevated TSH on TRT/HCG

    I've been on HRT for almost 2 years, HCG monotherapy for the first year, test+HCG for about 8 months. I had several normal thyroid studies prior to beginning HRT, and one normal study while on HCG. Today, as part of a work up for a new physician, my TSH came back at 8.005 (.45-4.5). I am...
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    Dialing in estradiol

    Hey guys, I posted way back about switching from HCG monotherapy to testosterone/HCG. Having been on some sort of HRT for almost 2 years, I'm beginning to develop a stronger intuition for when things "aren't right", and I'm beginning to suspect anastrazole may be the culprit behind malaise I've...
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    Needle Gauge for Testosterone Cypionate in Cottonseed Oil (Watson)

    Hey Guys, To those of you who've had success using a smaller-than-normal needle to inject Testosterone, do any of you use Cypionate in Cottonseed Oil? I've attempted this a few times with a 27g, 1/2 inch, but have encountered a lot of resistance. I've been using the 23g my doctor prescribed...
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    HCG Monotherapy, should I stay on it?

    Cheers guys, I'm a 22 year old male, recently found to have very low testosterone (139ng/dL). Doc prescribed Clomid, which got my levels up (to 600) with no symptomatic improvement (seems like the norm with Clomid unfortunately). I've been prescribed HCG at 4000 iu/week (daily injections)...
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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