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Parathyroid Hormone (PTH) Unit Converter
Parathyroid Hormone (PTH), also called parathormone, is secreted by the parathyroid glands. It plays a pivotal role in regulating calcium and phosphate levels in the blood.
Clinically, Intact PTH (1-84) is measured to evaluate hyperparathyroidism, hypoparathyroidism, and calcium metabolic disorders. This converter facilitates switching between the standard mass units (pg/mL, ng/L) and the SI molar unit (pmol/L).
Mass Units
StandardPicograms per milliliter (Numerically equivalent to ng/L).
SI / Molar Units
Clinical Context
Reference Values: Typically 15 – 65 pg/mL (1.6 – 6.9 pmol/L).
Ranges depend heavily on the assay (Intact vs. Bio-Intact) and vitamin D status.
Conversion Logic:
The molecular weight of Intact PTH (1-84) is approximately 9425 Da.
1 pg/mL ≈ 0.1061 pmol/L.
1 pmol/L ≈ 9.43 pg/mL.
Clinical References
How to Use This Converter
Follow these steps to normalize PTH values.
Enter Values
Input your laboratory results into the corresponding unit field (e.g., pg/mL).
Automatic Conversion
The calculator converts between mass units and the SI molar unit (pmol/L).
Reset
Use the Clear button to reset all fields.
Frequently Asked Questions
To distinguish between parathyroid and non-parathyroid causes of hypercalcemia (high calcium) or hypocalcemia (low calcium).
Standard immunoassays measure the intact hormone molecule (amino acids 1-84). Older assays might have detected inactive fragments.