All tests · Electrolytes & Minerals
Electrolytes & Minerals
Normal range 1.6-2.6 mg/dL (0.66-1.07 mmol/L SI). Specimen: Serum.
Also known as: serum magnesium.
Combined adult band. LabVals does not publish separate men's, women's, or pediatric ranges for Magnesium (Mg²⁺); those can be narrower than the band shown.
| Specimen | Serum |
|---|---|
| Conventional range | 1.6-2.6 mg/dL |
| SI range | 0.66-1.07 mmol/L |
| Conversion factor | ×0.411 (conventional → SI) |
| Critical value | < 1.0 or > 4.9 mg/dL |
| Panel | Electrolytes & Minerals |
Convert any Magnesium (Mg²⁺) result between units on the unit converter.
The standard teaching reference range for Magnesium (Mg²⁺) is 1.6-2.6 mg/dL in conventional units, or 0.66-1.07 mmol/L in SI units. This value is measured in serum.
For Magnesium (Mg²⁺), the commonly taught critical (panic) value is: < 1.0 or > 4.9 mg/dL. Critical results are reported to the provider immediately under your facility's policy.
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Above the range
Below the range
At the bedside
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