For people with diabetes, it's important to monitor blood glucose levels on a daily basis. However, these measuring blood glucose levels can be expressed in two different measurement units: mmol/L or mg/dL.

This can make it difficult to compare results from different tests or devices accurately. Thankfully, we have a blood sugar conversion calculator available that can instantly convert between the two units. This calculator quickly provides the corresponding value in the other unit by simply entering your blood sugar level in either unit. So for anyone regularly checking their blood sugar levels, a conversion calculator is a valuable tool in maintaining their health.


You can use our blood sugar converter to quickly and easily convert between mmol/L and mg/dL or vice versa. Simply enter your blood sugar level in either unit, and the calculator will provide the corresponding value in the other unit.

We know that no amount of precision can replace professional medical advice. However, we still offer this calculator as a tool to help you convert mmol/L and mg/dL.


mmol/L

mg/dL

Hypoglycemia

1.7

30

2.2

40

2.8

50

3.3

60

Normal Range

4

70

4.4

80

5

90

5.5

100

Hyperglycemia

6.1

110

6.7

120

7

126

8.6

155

9.7

175

10.6

190

13.9

250

22.2

400

33.3

600

How do you convert mmol/L to mg/dL?

In order to convert from mmol/L to mg/dL, the blood glucose value must be multiplied by 18.0182. This number equals approximately 18 milligrams per deciliter (mg/dL). As a result, to change from mmol/L to mg/dL, the blood glucose concentration must be multiplied by 18.0182.

How do you convert mg/dL to mmol/L?

To convert from mg/dL to mmol/L, multiply the glucose value by 0.0555. This equals approximately 0.055 mmol/L when one milligram of glucose equals 0.055 mmol/L. You can also convert mg/dl of glucose to mmol/l by dividing by 18.

About Blood Sugar Levels

Blood sugar and blood glucose refer to the same thing. Glucose is a type of sugar that your body uses for energy. When we talk about blood sugar levels, we refer to the amount of glucose in your blood at any given time. The hormone insulin regulates your blood glucose level.

Blood sugar levels can fluctuate for various reasons, including after eating or drinking, during physical activity, as a result of stress, or when you have type 1 diabetes or type 2 diabetes.

High blood sugar levels can be a sign of diabetes. You must speak with your doctor if you have concerns about your blood sugar levels.

Values that are significantly high could possibly be due to hyperglycemia, while lower-than-usual values might suggest hypoglycemia.

Checking Your Blood Sugar Levels

There are several ways to check your blood sugar levels. The most common method is to use a blood glucose meter, a lancet device, and test strips. This involves pricking your finger and then placing a drop of blood on the test strip. The test strip is then inserted into the glucometer, giving you a reading of your blood sugar level in either mmol/L or mg/dL.

What is a Normal Blood Sugar Level?

"normal" fasting blood sugar level is between 70-99 mg/dL (milligrams per deciliter). A "normal" non-fasting or random blood sugar level is less than 140 mg/dL. After eating a meal, a person with diabetes should aim for their post-meal or "postprandial" blood sugars to be below 180 mg/dL. Your blood glucose level before sleeping can vary.

However, it's important to keep in mind that these numbers may vary depending on your individual situation, age, and health condition. For example, people with diabetes may have different targets for their blood sugar levels. It's always best to speak with your healthcare professionals about your specific goals.

About the Author

Ely Fornoville

Hi, I'm Ely Fornoville and I am the founder of Diabetic & Me. Being a type 1 diabetic since 1996 I developed a passion to help people learn more about diabetes. I write about diabetes and share stories from other diabetics around the world. I am currently using a Medtronic Guardian 4 and a Minimed 780G insulin pump with Humalog.

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