Transforms glucose levels from mmol/L to mg/dL and from mg/dL to mmol/L.
In the text below the tool you can find out more about the conversion and about blood sugar levels.
The blood sugar conversion calculator helps convert blood glucose levels from one measurement unit to another. The two units are: mg/dL and mmol/L.
This is especially useful to those testing on a regular basis, if on occasion they use a different testing device and they cannot understand the value without converting to the units they are used to.
A blood sugar conversion calculator can help you to better manage your blood sugar levels, ensuring that you stay within the normal range to live a healthier life!
Blood sugar measurements vary based on where you live, with this easy calculator you can plug in your numbers to convert. In the United States, they tend to use milligram (mg) per deciliter (dL), whereas in Canada they use millimoles (mmol) per litre (L).
Whether it’s in mg/dL or mmol/L, this calculator is sure to help you.
Blood sugar means the amount of glucose that is in your bloodstream after eating or drinking anything with carbohydrates in it. The length of time and how you ate/drank will vary by person as to how long your blood sugar stays elevated.
Keeping your blood sugars within the normal range is essential for health, especially if you are someone living with Diabetes.
Normal blood sugar values during a fasting state are between 4.0 to 6.0 mmol/L, or 72 to 108 mg/dL. This value is measured either 2 hours before or after a meal. By this time your blood sugars should have returned to these normal ranges, and the glucose in the bloodstream will be lower.
If your fasting blood sugar levels are higher than this, you would be considered to have hyperglycemia. If your levels are lower then you may have hypoglycemia. With either hyper- or hypoglycemia, you should consult with your doctor to be tested for Diabetes.
Both are very serious health conditions, so it’s essential to consult with your Doctor.
Glycemia refers to the presence and concentration of glucose in the blood. When measuring blood glucose levels, venous blood serum provides the most accurate results, as glucose levels in capillary blood (measured by home glucose meters) can be significantly higher, especially after meals.
There are three key terms to understand when it comes to blood glucose levels:
Hypoglycemia: A condition where blood sugar levels fall below the normal range, typically below 2.8 mmol/L (50 mg/dL) in healthy individuals and 3.9 mmol/L (70 mg/dL) in those with diabetes.
Normoglycemia: The normal range for blood glucose, generally between 2.8 and 5.5 mmol/L (50 to 100 mg/dL) for healthy people, and 3.9 to 5.5 mmol/L (70 to 100 mg/dL) for those with diabetes.
Hyperglycemia: A state where blood glucose levels are above the normal range, with levels higher than 11.1 mmol/L (200 mg/dL) considered hyperglycemic.
Blood sugars are measured in either mmol/L or mg/dL, here is the quick conversion used to change them between.
Millimoles per liter (mmol/L) – the international standard
Milligrams per deciliter (mg/dL) – the predominant unit in the United States and Europe
The conversion between these units is straightforward:
1 mmol/L = 18.0182 mg/dL.
For example:
A person who has a blood sugar value of 4.0 mmol/L = 70 mg/dL. This would be considered a normal fasting blood sugar for a healthy person.
To convert the other way, here is another example:
1 mg/dL = 0.055 mmol/L.
A person who has a blood sugar of 190 mg/dL = 10.6 mmol/L. This would be considered hyperglycemia, and this individual should be tested for Diabetes.
Our advanced blood sugar converter makes it easy to switch between these units. Simply enter your glucose reading, and the calculator will instantly provide the equivalent value in the desired unit.
| Range | mmol/L | mg/dL |
| Hypoglycemic | 3.9 or less | 69 or less |
| Normal Blood Sugar Value | Between 4.0 – 5.9 | Between 70 – 100 |
| Hyperglycemic | Above 6.1 | Above 101 |
Our comprehensive blood sugar converter allows you to easily switch between the two primary units used to measure blood glucose levels – millimoles per liter (mmol/L) and milligrams per deciliter (mg/dL).
The conversion between these units is straightforward:
1 mmol/L = 18 mg/dL
To use the converter, simply follow these steps:
The blood sugar conversion calculator will instantly display the equivalent blood sugar level in the desired unit.
For example, if you have a blood glucose reading of 5.5 mmol/L and want to know the equivalent in mg/dL, you would enter “5.5” in the input field, select “mmol/L” as the current unit, and choose “mg/dL” as the target unit. The converter will then show that 5.5 mmol/L is equal to 99 mg/dL.
This simple conversion can be extremely helpful, as different regions and healthcare systems may use either mmol/L or mg/dL to report blood sugar results. Having the ability to quickly convert between the two units ensures you can accurately interpret your glucose readings, regardless of the format provided.
By using our blood sugar converter, you can take the guesswork out of unit conversions and focus on maintaining healthy blood glucose levels through a balanced lifestyle and medical management, if needed.
Managing blood sugars is very important, especially if you are someone living with Type 1 or Type 2 Diabetes. Having chronic hyperglycemia can put you at increased risk of:
Ensuring that you keep your blood sugars in a healthy range can help to prevent these health issues from occurring.
You can help to keep your blood sugars in the normal range by adopting some of these healthy habits in your life:
As a Registered Dietitian with over a decade of experience, I’ve put together my best tips and tricks to maintain blood sugar with this diet and the top foods to include. If you’re struggling with keeping your blood sugars in a normal range, it would be good to meet with a nearby Doctor and a Registered Dietitian to come up with a healthy plan to meet your needs.
References:
Michelle Saari is a highly experienced Registered Dietitian based in Canada, specializing in nutrition for aging well. She holds a Master’s Degree in Human Nutritional Sciences from the University of Manitoba and has completed a Dietetic Internship at the Northern Ontario School of Medicine. She also holds a Bachelor’s Degree in Human Nutritional Sciences and a Bachelor of Science in Biology from the University of Manitoba. With over six years of experience as a Clinical Dietitian at the Winnipeg Regional Health Authority, Michelle has extensive knowledge in nutrition education and food services. She has also served as the Director of the Food and Nutrition Services Department, where she led numerous initiatives to improve patient care through targeted nutrition strategies. She is the founder of two elderly nutrition-focused health blogs, The Dietitian Prescription and The Long Term Care RD. Through these platforms, she creates engaging and informative content that bridges the gap between scientific research and practical dietary choices. She is passionate about promoting health through evidence-based nutrition advice, specializing in high protein, high fiber, and low Glycemic Index cooking. Her expertise has been recognized by prominent media outlets, including Forbes, Fox News, Men’s Health, Yahoo, MSN, She Finds, Eat This Not That!, U.S. News and World Report, and AskMen.com. She has also been a featured guest speaker at esteemed events such as the North West Renal Dietitian's Annual Conference and the Dietitians of Canada Annual Conference, where she presented her thesis research.
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