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Thyroid Function TSH/T3/T4 Balance Calculator

Calculate thyroid function TSH/T3/T4 balance from TSH level, T3 level, T4 level, and age.

Thyroid Function TSH/T3/T4 Balance Calculator

Calculate thyroid function TSH/T3/T4 balance from TSH level, T3 level, T4 level, and age.

Input your thyroid function data

Formula

Thyroid balance = assessed from TSH, T3, and T4 levels and their relationships.

Normal ranges: TSH: 0.4-4.0 mIU/L (optimal: 1.0-2.5), T3: 80-200 ng/dL, T4: 5-12 μg/dL. Ranges may vary by lab and individual factors.

Thyroid function: High TSH indicates hypothyroidism (low function), low TSH indicates hyperthyroidism (high function). T3 and T4 levels reflect actual thyroid hormone production.

Thyroid function balance is affected by autoimmune disease, iodine intake, medications, age, and other factors affecting thyroid or pituitary function.

Steps

  • Enter TSH (thyroid-stimulating hormone) level (mIU/L) from thyroid function test.
  • Optionally enter T3 (triiodothyronine) level (ng/dL) from thyroid function test.
  • Optionally enter T4 (thyroxine) level (μg/dL) from thyroid function test.
  • Enter your age (thyroid function can change with age).
  • Review TSH/T3/T4 balance, thyroid function status, and recommendations.

Additional calculations

Enter your thyroid function data to see additional insights.

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Complete guide snapshot

TSH, T3, and T4 are key thyroid hormones that regulate metabolism. TSH stimulates thyroid hormone production. High TSH indicates hypothyroidism, low TSH indicates hyperthyroidism. Normal TSH: 0.4-4.0 mIU/L, T3: 80-200 ng/dL, T4: 5-12 μg/dL.

Use this calculator to assess thyroid function TSH/T3/T4 balance from TSH level, T3 level (optional), T4 level (optional), and age.

FAQs

What are TSH, T3, and T4?

TSH (thyroid-stimulating hormone) is produced by the pituitary to stimulate the thyroid. T3 (triiodothyronine) and T4 (thyroxine) are thyroid hormones that regulate metabolism. Balance between these indicates thyroid function.

What are normal thyroid hormone levels?

Normal TSH: 0.4-4.0 mIU/L. Normal T3: 80-200 ng/dL. Normal T4: 5-12 μg/dL. Ranges may vary by lab and individual factors. Optimal TSH is often 1.0-2.5 mIU/L.

What is hypothyroidism?

Hypothyroidism (underactive thyroid) is characterized by elevated TSH and low T3/T4. Symptoms include fatigue, weight gain, cold intolerance, and depression. It requires thyroid hormone replacement.

What is hyperthyroidism?

Hyperthyroidism (overactive thyroid) is characterized by low TSH and elevated T3/T4. Symptoms include weight loss, rapid heartbeat, anxiety, and heat intolerance. It requires treatment to reduce thyroid function.

How do TSH, T3, and T4 work together?

TSH stimulates the thyroid to produce T4 and T3. T4 is converted to the more active T3. High TSH indicates low thyroid function (hypothyroidism), while low TSH indicates high function (hyperthyroidism).

What causes thyroid imbalance?

Thyroid imbalance can result from autoimmune disease (Hashimoto's, Graves'), iodine deficiency, medications, radiation, surgery, or other conditions affecting thyroid or pituitary function.

Does age affect thyroid function?

Yes. Thyroid function can change with age. Older adults may have slightly different normal ranges. Subclinical hypothyroidism is more common in older adults.

Can I track thyroid function at home?

Home thyroid tests are limited. Thyroid function tests (TFTs) through healthcare providers provide accurate TSH, T3, and T4 measurements. Regular monitoring is important for thyroid health.

What about subclinical thyroid disease?

Subclinical hypothyroidism (elevated TSH, normal T3/T4) or hyperthyroidism (low TSH, normal T3/T4) may not cause symptoms but can progress. Treatment decisions depend on individual factors.

When should I consult a healthcare provider?

Consult a healthcare provider if TSH is outside normal range, if you have thyroid symptoms, if you have risk factors for thyroid disease, or if you need thyroid medication adjustment.

Summary

This tool calculates thyroid function TSH/T3/T4 balance from TSH level, T3 level (optional), T4 level (optional), and age.

Outputs include TSH level, T3 level, T4 level, balance score, status, recommendations, an action plan, and supporting metrics.

Formula, steps, guide content, related tools, and FAQs ensure humans or AI assistants can interpret the methodology instantly.

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Thyroid Function TSH/T3/T4 Balance Calculator

Calculate thyroid function TSH/T3/T4 balance from TSH level, T3 level, T4 level, and age.

How to use Thyroid Function TSH/T3/T4 Balance Calculator

Step-by-step guide to using the Thyroid Function TSH/T3/T4 Balance Calculator:

  1. Enter your values. Input the required values in the calculator form
  2. Calculate. The calculator will automatically compute and display your results
  3. Review results. Review the calculated results and any additional information provided

Frequently asked questions

How do I use the Thyroid Function TSH/T3/T4 Balance Calculator?

Simply enter your values in the input fields and the calculator will automatically compute the results. The Thyroid Function TSH/T3/T4 Balance Calculator is designed to be user-friendly and provide instant calculations.

Is the Thyroid Function TSH/T3/T4 Balance Calculator free to use?

Yes, the Thyroid Function TSH/T3/T4 Balance Calculator is completely free to use. No registration or payment is required.

Can I use this calculator on mobile devices?

Yes, the Thyroid Function TSH/T3/T4 Balance Calculator is fully responsive and works perfectly on mobile phones, tablets, and desktop computers.

Are the results from Thyroid Function TSH/T3/T4 Balance Calculator accurate?

Yes, our calculators use standard formulas and are regularly tested for accuracy. However, results should be used for informational purposes and not as a substitute for professional advice.