Blood Sugar Converter

This is a handy blood sugar converter that helps you interpret glucose levels in the blood by converting US blood glucose values in mg/dl into mmol/L and vice versa. It also explains various concepts related to blood sugar levels.

What is blood sugar?

Blood sugar describes the amount of glucose in blood. It’s usually described in moles per liter (mmol/l) or milligrams per deciliter (mg/dl). The standard level of blood sugar in humans is around 4,5-5,5 moles/liter. Serious health problems may occur when the blood sugar level is too high or too low.

What is blood sugar level?

The blood sugar level (aka. blood sugar concentration or blood glucose level) is the measurement of the amount of glucose present in the blood. Glucose is an essential source of energy, our bodies make it, but glucose mostly comes from the food we eat.

Blood sugar checking

Normal glucose levels are between 72 and 108 mg/dL (= 4.0 to 6.0 mmol/L). These values are usually lower in the morning and rise during the first two hours after each meal. Pathologically high values indicate hyperglycemia whilst lower than normal values indicate hypoglycemia. Long term hyperglycemia is associated with diabetes mellitus, heart and/or kidney disease whilst hypoglycemia may lead to lethargy, shaking, sweating, muscle weakness and impaired mental function.

Blood sugar units

The international standard way of measuring blood glucose levels is in terms of a molar concentration, measured in mmol/L (millimole per liter). In the U.S., Germany and some other countries blood sugar level concentration is measured in mg/dL (milligrams per decilitre).

mg/dl

Milligram per deciliter, the unit used in medicine to measure the concentration of substances in the blood. 1 mg/dl equals 0.01 grams per liter (g/L).

mmol/l or mmol/L

Millimole per liter, the SI unit in medicine for measuring concentrations of substances in the blood.

Blood sugar conversion formulas

The blood glucose converter can perform either of the conversions, be it that we start from mg/dL or mmol/L.

The mmol/L unit is the molar concentration, also known as millimolar (mM). This is equal to 18.0182 mg/dL. 1 mmol/L = 18.0182 mg/dL which means:

Value in mg/dL (mmol/L to mg/dL) = Glucose value in mmol/L x 18.0182

In the US, the miligrams per deciliter, mg/dL is preferred. This is equal to 0.0555 mmol/L.

1 mg/dL = 0.055 mmol/L which means:

Value in mmol/L (mg/dL to mmol/L) = Glucose value in mg/dL x 0.0555

Conversion Table for Blood Glucose Monitoring

  • mmol/L in mg/dL, conversion factor: 1 mmol/L = 18,018 mg/dL
  • mg/dL in mmol/L, conversion factor: 1 mg/dL = 0.0555 mmol/L
mmol/L mg/dl   mmol/L mg/dl   mmol/L mg/dl
0.06 1 6.7 120 16.0 288
0.28 5 7.0 126 16.6 300
0.55 10 7.2 130 17.0 306
1.0 18 7.5 135 18.0 325
1.5 27 7.8 140 19.0 342
2.0 36 8.0 145 20.0 360
2.2 40 8.3 150 20.8 375
2.5 45 8.9 160 22.2 400
2.8 50 9.0 162 23.0 414
3.0 54 9.4 170 24.0 432
3.3 60 10.0 180 25.0 450
3.9 70 10.5 190 26.4 475
4.0 72 11.0 196 27.7 500
4.4 80 11.1 200 30.0 540
4.7 85 12.0 216 33.3 600
5.0 90 12.5 225 38.8 700
5.5 100 13.9 250 40.0 720
6.0 106 14.4 260 44.4 800
6.1 110 15.0 270 50.0 900

How to use the blood sugar converter?

  1. Enter the value of blood sugar.
  2. Select whether you want to convert the value from mg/dl to mmol/L, or from mmol/L to mg/dl.
  3. The result is displayed.

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