Compare your measured serum magnesium with an albumin-adjusted estimate taken from published literature — side by side, with the formula's source shown.
Typical adult reference range: 1.7–2.2 mg/dL (0.70–0.91 mmol/L) per MedlinePlus. Your laboratory's own range takes precedence. These bands are for orientation only — not a diagnosis.
corrected Mg (mmol/L) = measured Mg (mmol/L) + 0.005 × (40 − albumin [g/L])
| Input | Measured | Correction | Corrected |
|---|---|---|---|
| Mg 0.60 mmol/L, albumin 28 g/L | 1.46 mg/dL (0.600 mmol/L) | +0.060 mmol/L (+0.146 mg/dL) | 1.60 mg/dL (0.660 mmol/L) |
| Mg 1.50 mg/dL, albumin 3.0 g/dL | 1.50 mg/dL (0.617 mmol/L) | +0.050 mmol/L (+0.122 mg/dL) | 1.62 mg/dL (0.667 mmol/L) |
| Mg 0.65 mmol/L, albumin 20 g/L | 1.58 mg/dL (0.650 mmol/L) | +0.100 mmol/L (+0.243 mg/dL) | 1.82 mg/dL (0.750 mmol/L) |
Row 3 shows why the correction is discussed at all: with albumin at 20 g/L the measured value sits below the typical range while the adjusted estimate reaches it — but reviews caution that this adjustment has little proven clinical relevance.
Free tool by NRTechStudio
Explore similar security tools and calculators. 100% free, accurate, and runs completely in your browser without sign-up.
2 taps, no typing needed — diagnostics are sent automatically.