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Free T3 to Reverse T3 Ratio Calculator
Easily calculate the Free T3 to Reverse T3 Ratio using Free T3 and Reverse T3 values.

Instructions:

  1. Enter Free T3 value and select unit
  2. Enter Reverse T3 value and select unit
  3. Click "Get Ratio"
RT3 Ratio:
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About
The ratio of Free Triiodothyronine (T3) to Reverse Triiodothyronine (rT3) is an important marker for evaluating thyroid hormone activity and assessing the body's response to physiological stress, illness, or thyroid dysfunction. To use this calculator, enter your Free T3 and Reverse T3 levels, typically obtained from blood tests. Our calculator will compute the Free T3/rT3 ratio, offering a critical perspective on how active thyroid hormone (T3) is utilized compared to the inactive form (rT3). This ratio is particularly significant for identifying issues like thyroid hormone conversion problems, indicating whether the body is in a state of metabolic balance or distress. By providing a more comprehensive view of thyroid hormone function, this calculator supports the pursuit of personalized medical care, optimizing health outcomes by addressing the nuanced interplay of thyroid hormones within the body.