Blood SugarConversion Formulas & Examples
Millimoles per liter → Milligrams per deciliter
1 mmol/L = 18.0182 mg/dLExample: 10 mmol/L = 180.182 mg/dL
Milligrams per deciliter → Millimoles per liter
1 mg/dL = 0.055499 mmol/LExample: 10 mg/dL = 0.55499 mmol/L
Frequently Asked Questions
Q.How do you convert blood glucose from mmol/L to mg/dL?
Multiply the reading in mmol/L by 18.0182 to get mg/dL. For quick mental estimation, multiplying mmol/L by 18 gives a close approximation (e.g., 5.5 mmol/L × 18 ≈ 99 mg/dL).
Q.How do you convert mg/dL to mmol/L?
Divide the mg/dL value by 18.0182 (or multiply by 0.0555) to convert to mmol/L. For example, 100 mg/dL equals approximately 5.55 mmol/L.
Q.Why is the conversion factor between mmol/L and mg/dL equal to 18.018?
The conversion factor is derived from the molar mass of glucose (C₆H₁₂O₆), which is approximately 180.16 g/mol. Divided by 10 to convert per liter to per deciliter gives 18.018.
Q.Which countries use mg/dL versus mmol/L?
mg/dL is the standard reporting unit in the United States, Japan, France, and Germany, whereas mmol/L is used in the United Kingdom, Canada, Australia, and China.