Thyroid Tools & Calculators
Free tools built by a thyroid doctor to help you understand your labs, track your progress, and take control of your thyroid health.
Each tool below was designed based on years of clinical experience treating thyroid patients and reflects the optimal ranges and ratios used in functional and integrative medicine, not just the standard reference ranges.
Optimal Thyroid Lab Test Calculator
Enter your thyroid lab values and instantly see whether your results fall within the optimal range, not just the standard reference range. Covers all seven key thyroid markers: TSH, free T3, free T4, total T3, reverse T3, TPO antibodies, and thyroglobulin antibodies.
Reverse T3 Ratio Calculator
Your reverse T3 level alone doesn’t tell the full story. What matters is the ratio between your free T3 and reverse T3. This calculator computes your reverse T3 ratio and tells you whether it falls within the optimal range used in functional medicine.
I’m building additional calculators, quizzes, and self-assessment tools to help you better understand your thyroid health. Check back regularly for new additions.
These tools are for informational and educational purposes only and are not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider regarding your thyroid health.