Thyroid Score: How Optimized Is Your Thyroid? Take The Free Test
Rate your symptoms, add what you know, and get a 0 to 100 score for how well your thyroid is optimized:
0 means you don't have it. 10 means it's the worst it's been.
Skip anything you don't have. The score rebalances around what you enter.
Written and medically reviewed by Dr. Westin Childs, D.O. Last reviewed: August 28, 2026
How To Use This Test:
#1. Rate Your Symptoms
Twelve symptoms, each on a slider from 0 to 10. Zero means you don’t have it, 10 means it’s the worst it’s been. Go with your gut. Your first instinct is usually right.
#2. Add Your Thyroid Medication
Pick your medication from the list, or choose not on thyroid medication. What you take matters, because T4-only medication leaves many thyroid patients under-optimized even when their labs look fine.
#3. Make It More Accurate (Optional)
If you have recent labs, this morning’s temperature, or your height and weight, add them. Labs are the biggest single piece of your score, so even a TSH from your last blood draw makes the result more accurate.
#4. Get Your Score And Improve It
You’ll get a score from 0 to 100, what’s pulling it down, and what to do about each piece. Save it to your free Thyroid Tracker and you can watch the number go up as you fix things.
What Your Thyroid Score Is Made Of
Your Thyroid Score reflects how well your thyroid is optimized. The higher the number, the healthier your thyroid. Here’s the exact formula:
- Your labs (40%): how close each thyroid lab sits to its optimal range, not just the standard range. TSH between 0.5 and 1.0, free T3 between 3.8 and 4.4, free T4 between 1.4 and 1.77.
- Your symptoms (30%): the 12 symptom ratings, averaged. Symptoms count because they tell you what your labs can’t: whether you actually feel well.
- Your weight (10%): your BMI, scored from your height and weight. Inside the healthy range scores 100.
- Your temperature (10%): your morning temperature compared to the optimal band of 97.8 to 98.6. Low temperatures suggest low T3 activity in your tissues.
- Your medication (10%): T4-only medication scores lower than medication containing T3, because many thyroid patients have trouble converting T4 into the active hormone.
Skip a piece and the score rebalances around what you did enter. That means you can get a score from symptoms alone, and it gets more accurate with each piece you add.
What Your Score Means
- 80 or higher: your thyroid is in good shape. Keep doing what you are doing and re-check every few months.
- 60 to 79: decent, with room to improve. Usually one specific piece is dragging the number down, and the results tell you which one.
- 40 to 59: your thyroid needs attention. This is the most common range for thyroid patients on a stable dose who still feel off.
- Under 40: something real is going on. Get a full thyroid panel, including free T3, and see where your numbers fall.
One score is a snapshot. The reason to track it is the trend: change one thing, re-check in six to eight weeks, and see if the number changed. That’s how you find out what’s actually helping.
Frequently Asked Questions
80 or higher. Most thyroid patients who still have symptoms land somewhere between 40 and 70, and the point of the score is to show you which piece to work on first.
Because the score compares your labs to optimal ranges, which are tighter than the standard ones on your lab report, and because symptoms carry 30% of the weight. “Normal” labs with a TSH of 4.2 and a pile of symptoms is exactly the situation this score was made to catch.
Yes. Rate your symptoms and add your medication, and the score works from those. It just leans harder on how you feel. Add labs when you have them and the score gets more accurate.
Every six to eight weeks if you’re actively changing something (a new dose, a new supplement, a diet change), since that’s how long your labs take to settle after a change. Every few months if you’re stable.
Related Tools
- Optimal Thyroid Lab Calculator: the deep look at each lab
- Thyroid Temperature Test: what your morning temperature says about your T3
- Thyroid Weight Gain Calculator: how many of your pounds come from your thyroid
- All Thyroid Calculators & Quizzes: the full set of free tools
Scientific References
- Zulewski H, Muller B, Exer P, Miserez AR, Staub JJ. Estimation of tissue hypothyroidism by a new clinical score: evaluation of patients with various grades of hypothyroidism and controls. J Clin Endocrinol Metab. 1997;82(3):771-776.
- Watt T, Hegedus L, Groenvold M, et al. Validity and reliability of the novel thyroid-specific quality of life questionnaire, ThyPRO. Eur J Endocrinol. 2010;162(1):161-167.
- Wartofsky L, Dickey RA. The evidence for a narrower thyrotropin reference range is compelling. J Clin Endocrinol Metab. 2005;90(9):5483-5488.
- Peterson SJ, Cappola AR, Castro MR, et al. An online survey of hypothyroid patients demonstrates prominent dissatisfaction. Thyroid. 2018;28(6):707-721.