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Cornell Pediatrics

Calcium Equivalents

Calcium can be measured by the amount of the calcium salt (mg of the cation plus the anion, or mL of a specified concentration) or the amount of elemental calcium in milligrams (mg), in milliequivalents (mEq), or in millimoles (mmol). (Because calcium has a valence of +2, the milliequivalents equals two times the number of millimoles.) Its varied dosing units and conversion factors are potential sources of medication errors.

Enter a value in a cell and click the “Calculate” button in the same row to determine all the equivalent forms. Be aware that there may be some rounding error with multiple conversions.

Elemental Ca (mg)
Elemental Ca (mEq)
Elemental Ca (mmol)
 
CaChloride (g)
CaChloride 10% (ml)
CaGluconate (g)
CaGluconate 10% (ml) 
CaAcetate (g)
CaCarbonate (g)
CaCitrate (g)
CaGlubionate (g)
 

 

  Salt Elemental Ca
Calcium Acetate 1g 12.6 mEq 253 mg 6.30 mmol
Calcium Carbonate 1g 19.9 mEq 400 mg 9.96 mmol
Calcium Citrate 1g 10.5 mEq 211 mg 5.26 mmol
Calcium Chloride 1g 13.6 mEq 273 mg 6.80 mmol
Calcium Glubionate 1g 3.29 mEq 66 mg 1.64 mmol
Calcium Gluceptate 1g 4.08 mEq 82 mg 2.04 mmol
Calcium Gluconate 1g 4.65 mEq 93 mg 2.32 mmol

 

Created: April 7, 2000
Revised: June 7, 2011

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