The ratio of Free Triiodothyronine (T3) to Free Thyroxine (T4) is a valuable indicator in evaluating thyroid activity, providing insights beyond standard thyroid function tests. This ratio helps in understanding how effectively T4 is being converted to the more active T3 hormone, which is crucial for regulating metabolism, energy levels, and overall bodily functions.
To use this calculator, input your Free T3 and Free T4 levels, typically measured in picograms per milliliter (pg/mL) or picomoles per liter (pmol/L). Our calculator will compute the Free T3 to Free T4 ratio, offering a nuanced view of thyroid hormone dynamics. This calculation is particularly useful for assessing and managing conditions such as hypothyroidism, hyperthyroidism, and non-thyroidal illness syndrome, where thyroid hormone conversion efficiency is of concern.
By offering a deeper understanding of thyroid hormone activity, this calculator aids in pursuing optimal health and well-being, ensuring that clinicians and patients have the knowledge to manage thyroid health effectively.
ODX's Range: 2.4 – 2.7 Ratio (FT3 in pg/mL and FT4 in ng/dL)