Calcium: convert mg/dL to mmol/L
mmol/L = mg/dL × 0.2495
Calculator
Enter a value in any unit and all other units fill in.
Conversion formulas
| mg/dL → mmol/L | mmol/L = mg/dL × 0.2495 |
|---|---|
| mmol/L → mg/dL | mg/dL = mmol/L × 4.008 |
Conversion table
Highlighted: values inside the adult reference range.
| mg/dL | mmol/L |
|---|---|
| 2 | 0.499 |
| 4 | 0.998 |
| 6 | 1.497 |
| 8 | 1.996 |
| 10 | 2.495 |
| 12 | 2.994 |
| 14 | 3.493 |
| 16 | 3.992 |
| 18 | 4.491 |
| 20 | 4.99 |
| 22 | 5.489 |
| 24 | 5.988 |
| 26 | 6.487 |
Reference range
8.818 – 10.42 mg/dL = 2.2 – 2.6 mmol/L
Source: Pathology Harmony Group (ACB, IBMS, RCPath): Agreed Adult Clinical Biochemistry Reference Intervals, January 2011 · Last reviewed: 2026-10-14