Glucose units conversion

Units used to measure blood or interstitial fluid glucose values depend on the country.
Basically, 2 systems are used:

  • mmol/l (millimoles per liter);
  • mg/dl (milligrams per deciliter).

    The below formula and table can be used if conversion between both systems is needed:
           1 mmol/l = 18 mg/dl

    Conversion between mmol/l and mg/dl

    To convert from mmol/l to mg/dl, locate the integral part of the glucose value in the left (orange) column and the decimal part of the glucose value in the top (orange) row of the table. The value in mg/dl is then found in the cell to the right of integral and below the decimal part of value in mmol/l as shown below. The example shows that the value 7.8 mmol/l corresponds to 140 mg/dl.

    To convert from mg/dl to mmol/l, locate the value in mg/dl in a white cell of the table. The integral part of value in mmol/l is then found in the orange column to the left of the cell and the decimal part of value in mmol/l is in the orange row above the cell. The example shows that the value 77 mg/dl corresponds to 4.3 mmol/l.