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- mg/dL to µmol/L
mg/dL to µmol/L
There is no single mg/dL to µmol/L factor. mg/dL counts the mass of a substance, µmol/L the number of its molecules, so the factor depends on the substance’s molar mass. Here are the 3 lab tests Soma converts in these units.
Tests and factors
| Test | Units | US → SI | SI → US | Molar mass |
|---|---|---|---|---|
| Creatinine | mg/dL ⇄ µmol/L | × 88.402 | × 0.011312 | 113.12 g/mol |
| Uric acid | mg/dL ⇄ µmol/L | × 59.485 | × 0.016811 | 168.11 g/mol |
| Bilirubin, total | mg/dL ⇄ µmol/L | × 17.104 | × 0.058466 | 584.66 g/mol |
The molar masses are the ones the Soma app converts with; each links to its compound on PubChem (U.S. National Library of Medicine). HbA1c uses the IFCC–NGSP master equation instead of a molar mass. Urea nitrogen counts the two nitrogen atoms of urea; phosphate is measured as phosphorus. Prolactin and insulin have no molar mass in these units: each uses the factor of the international standard its tests are calibrated to. ALT and AST count enzyme activity: 1 µkat/L is 60 U/L by definition. Mention of a source doesn’t mean it endorses Soma.
µmol/L = mg/dL × 88.402 · molar mass 113.12 g/mol
Creatinine: formula and common values →This converter changes units only. It doesn’t tell you whether a number is in or out of any range: that depends on the range printed by your own lab, and on your doctor. Soma does not diagnose and is not medical advice.
Questions
Why is there no single mg/dL to µmol/L factor?
Going from mass to molecules needs the mass of one mole of the substance, and every substance has its own. So each test has its own factor: Creatinine: multiply mg/dL by 88.402; Uric acid: multiply mg/dL by 59.485; Bilirubin: multiply mg/dL by 17.104.
How do I convert mg/dL to µmol/L?
Find your test in the table and multiply by its factor; to go back, multiply by the other one. For example, 1 mg/dL of creatinine is 88.4 µmol/L.
By unit pair
Soma converts straight from the PDF
Share a lab report to Soma, and it reads every row on your phone and converts the units for you, so a Quest result in mg/dL and a Synlab result in mmol/L sit on one chart, each against its own lab’s range. No account, nothing uploaded.