Conversion Formula:
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The conversion between millimoles per liter (mmol/L) and milligrams per liter (mg/L) is essential in chemistry and medical laboratory work. It allows expression of substance concentrations in either molar or mass terms, depending on the application.
The calculator uses the simple formula:
Where:
Explanation: The formula converts molar concentration to mass concentration by multiplying by the substance's molecular weight.
Details: Accurate unit conversion is crucial for medical dosing, laboratory reporting, and comparing results across different measurement systems. Many medical tests report results in mmol/L while treatment guidelines may reference mg/L.
Tips: Enter the concentration in mmol/L and the substance's molecular weight. Both values must be positive numbers. Common molecular weights:
Q1: Why convert between mmol/L and mg/L?
A: Different countries and medical specialties use different units. Conversion allows comparison and standardization of results.
Q2: How do I find a substance's molecular weight?
A: Molecular weights are listed in chemical references, safety data sheets, or can be calculated from the chemical formula.
Q3: What's the difference between mmol/L and mol/L?
A: 1 mmol/L = 0.001 mol/L. Millimoles are often used in medicine because they provide more convenient numbers for typical concentrations.
Q4: Can I convert mg/dL to mmol/L with this?
A: No, this calculator only converts mmol/L to mg/L. For mg/dL to mmol/L, you would divide by the MW and multiply by 10.
Q5: Are there substances this doesn't work for?
A: The formula works for all substances when you know the exact molecular weight. For mixtures or substances with variable composition, additional information is needed.