BLOOD SUGAR READINGS

by Jennifer
(Pennsylvania )



My Blood Sugar Machine Reads 7.5. What Is That in mg/dL?



Answered by Dr. Albana Greca



Hi Jennifer,



I understand your question. Your machine is most likely showing your blood sugar in mmol/L, which stands for millimoles per liter. This unit is commonly used in Europe, Canada, the UK, Australia, and many other countries.



The other common unit is mg/dL, which stands for milligrams per deciliter. This unit is commonly used in the United States.




Quick answer: A blood sugar reading of 7.5 mmol/L is equal to about 135 mg/dL.




How to Convert mmol/L to mg/dL



For blood glucose, the conversion formula is:



mmol/L × 18 = mg/dL



So your reading is:



7.5 mmol/L × 18 = 135 mg/dL



How to Convert mg/dL to mmol/L



To convert from mg/dL to mmol/L, divide by 18:



mg/dL ÷ 18 = mmol/L



For example:



135 mg/dL ÷ 18 = 7.5 mmol/L



What About 120 mg/dL?



If someone says their blood sugar is 120 mg/dL, you can convert it to mmol/L like this:



120 mg/dL ÷ 18 = 6.7 mmol/L



So, 120 mg/dL is approximately 6.7 mmol/L.




Doctor’s note from Dr. Albana Greca: This conversion is for blood glucose. The meaning of a number depends on when you checked it — fasting, before meals, after meals, at bedtime, or during symptoms. If your blood sugar is often high, very low, or you feel unwell, speak with your doctor for personal advice.




Educational note: This answer is for general diabetes education only. It does not replace personal medical advice, diagnosis, or treatment from your own healthcare professional.




Related Resources from Beating Diabetes





Helpful References




Hope this answered your question. Do not hesitate to write back if you have another concern.



Regards,
Dr. Albana Greca



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