mmol/l (millimoles/liter)is the unit for measuring glucose in blood in most parts of the world other than the US. mg/dl (milligrams/deciliter) is the traditional unit for measuring bG (blood glucose) in the US.
To convert mmol/l (SI units) of glucose to mg/dl (US units), multiply by 18.
Example: 4 mmol/l x 18 = 72 mg/dl
Example: 6 mmol/l x 18 = 108 mg/dl.
To convert mg/dl of glucose to mmol/l, divide by 18.
Example: 125 mg/dl / 18 = 6.94 mmol/l
These factors are specific for glucose because the conversion depends on the mass of one molecule (the molecular weight). The conversion factors are different for other substances, cholesterol and other blood lipids for instance.
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