mEq to mg Converter
mg = mEq × molecular weight ÷ valence · mEq = mg × valence ÷ molecular weight.
1 mEq in mg for common ions
| Ion | MW (g/mol) | Valence | 1 mEq = | 1 mmol = |
|---|---|---|---|---|
| Sodium (Na⁺) | 22.99 | 1 | 22.99 mg | 1 mEq |
| Potassium (K⁺) | 39.098 | 1 | 39.10 mg | 1 mEq |
| Chloride (Cl⁻) | 35.45 | 1 | 35.45 mg | 1 mEq |
| Bicarbonate (HCO₃⁻) | 61.017 | 1 | 61.02 mg | 1 mEq |
| Calcium (Ca²⁺) | 40.078 | 2 | 20.04 mg | 2 mEq |
| Magnesium (Mg²⁺) | 24.305 | 2 | 12.15 mg | 2 mEq |
| Phosphate (HPO₄²⁻) | 95.979 | 2 | 47.99 mg | 2 mEq |
This page converts units only. For lab results reported per liter, see the molarity calculator.
FAQ
What is the formula for mEq to mg?
mg = mEq × molecular weight ÷ valence. Example: 1 mEq of calcium (MW 40.08, valence 2) = 40.08 ÷ 2 = 20.04 mg.
How do I convert mg to mEq?
mEq = mg × valence ÷ molecular weight.
What is the difference between mEq and mmol?
mEq = mmol × valence. For monovalent ions like sodium and potassium they are equal; for divalent ions like calcium and magnesium, 1 mmol = 2 mEq.
How do I convert mEq/L to mg/dL?
mg/dL = mEq/L × MW ÷ valence ÷ 10.
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