Calcium (CSF) unit converter
Calcium in cerebrospinal fluid
Also known as: CSF calcium, Liquorcalcium, Calcium im Liquor, Calcium in cerebrospinal fluid
Converter
Enter a value in any unit and all other units fill in.
Worked example
1.175 mmol/L (middle of the reference range) = 2.35 mEq/L
Conversion formulas
| mEq/L | mEq/L = mmol/L × 2 | mmol/L = mEq/L × 0.5 |
|---|---|---|
| mg/dL | mg/dL = mmol/L × 4.008 | mmol/L = mg/dL × 0.2495 |
| mg/L | mg/L = mmol/L × 40.08 | mmol/L = mg/L × 0.02495 |
| µmol/L | µmol/L = mmol/L × 1000 | mmol/L = µmol/L × 0.001 |
| µg/dL | µg/dL = mmol/L × 4008 | mmol/L = µg/dL × 0.0002495 |
Good to know
Calcium in cerebrospinal fluid is reported in mmol/L, mg/dL or mEq/L.
- mEq/L = mmol/L × 2; 1 mmol/L = 4 mg/dL.
- CSF (cerebrospinal fluid) values are only meaningful together with a blood sample taken at the same time and the other CSF results.
Reference range
| Unit | Adults |
|---|---|
| mmol/L | 1.1 – 1.25 |
| mEq/L | 2.2 – 2.5 |
| mg/dL | 4.409 – 5.01 |
| mg/L | 44.09 – 50.1 |
| µmol/L | 1100 – 1250 |
| µg/dL | 4409 – 5010 |
Source: Pirke, Wisser, Mertin (1972): Elektrolytkonzentrationen in Liquor und Serum, Z Klin Chem Klin Biochem 10:462-466 (HU Berlin edoc) · Last reviewed: 2026-10-19
Note from the source: 1.10-1.25 mmol/L (96th-percentile limits, 102 samples, atomic absorption; study from 1972); 1 mEq/L = 0.5 mmol/L