Blood Sugar Converter

The blood sugar concentration or blood glucose level is the amount of glucose (sugar) present in the blood of a human or animal. Convert blood sugar/glucose from mmol/L (EU standard) to mg/dl (USA standard) and vice versa using our blood sugar converter.

Keywords: blood sugar, blood sugar levels, mmol/l, mg/dl, convert blood glucose value

How to use blood sugar converter tool?

The use is very simple. This tool will convert mg/dl unit to mmol/l or convert mmol/l to mg/dl.. In the United States of America, blood glucose test (blood sugar test) results are reported as mg/dL. Medical journals and other countries use millimoles per liter (mmol/L).

How to convert your value?

First, select conversion mode. Either select mg/dl to mmol/l or mmol/l to mg/dl.
Input your value (do not include “mg/dl” or “mmol/l”) and press calculate. Result will be displayed below.

Blood Sugar Converter

Input your value:
(Use dot to separate values. Example 5.5)
Select conversion:

Low, normal and high blood sugar/glucose levels can be found in the table below.

Expected blood sugar level values

Blood Sugar Level Children mg/dl (mmol/l) Adults mg/dl (mmol/l)
Normal 70 – 100 mg/dL (3.9 – 5.5 mmol/l) 70 – 140 mg/dL (3.9 – 7.7 mmol/l)
Low lower than 70 mg/dL (lower than 3.9 mmol/l) lower than 70 mg/dL (lower than 3.9 mmol/l)
High Over 140 mg/dL (over 7.7 mmol/l) Over 180 mg/dL (over 10 mmol/l)

Blood sugar level values are a bit different because of unit conversions – from mg/dl to mmol/l.

If you found yourself to have high blood sugar levels – you can lower your BS by maintaining normal body weight, eating healthy and by physical activity.

For more information on blood sugar refer to this article on blood sugar levels.


  1. Rachna Moudgil

    my blood sugar level was 53 but my urine test was normal I don\’t want to go on medication for my whole life so is there any way can I control my blood sugar naturally without taking medication? I\’m a bit overweight so if I lose weight will this prevent me from diabetes?

    • Carol

      I wonder if you get a reply to your question? If not there is a way to control your blood sugar naturally, it\’s called the keto diet. In it you eat 85%fat, 10% protein and 5% carbs.

      There are many websites & books to help you to learn about eating this way. It worked for me.
      All the best!

  2. marry

    there are the numbers I\’d be interested in for translation
    a1c 5.5
    a1c 5.6
    a1c 5.7
    a1c 5.8
    a1c 5.9
    a1c 6.0
    a1c 6.1
    a1c 6.2
    thank you.

  3. Ather Kazemi

    Very useful article. I have forwarded the link to many of my friends and relatives.

  4. What is normal blood sugar level

    […] mg/dL and mmol/L are units of measure. md/dL is mostly used in USA whereas mmol/L is mostly used in EU and other parts of the world. For easier conversion try our mg/dL mmol/L conversion tool. […]

  5. Waheed Rafiq

    I brought 2 in 1 Smart blood glucose monitoring system and my reading show 6.1 is that good or bad , i wish these reading where made simple as in ” You have a hight sugar level ” or You have low suger level .

    • Shiv

      6.1 is good which is normal.

    • Andy Richardson.

      That’s just normal I feel when I am high I am running upto 16. That worry’s my GP a lot.

  6. stephen

    I am 54 years old and my average blood sugar is 7.5 as measured by HC1ac. Is that a good or bad measure please?

    • Nancy

      A1C of 7.5 means your average blood glucose for the last 3 months was 10.5 mmol/L or 189.7 mg/dL

  7. jennifer

    i just bought a one touch ultra mini bg monitoring system…i checked my bl and it was 187…now i know that is high bs…but should i say i’m diabetic….i’m also 348 pounds….should i see a doctor?

  8. kaza

    i am 29 years old i checked my sugar levels after consuming tea in the morning it was 135 with electronic gluco metre it showed different values145,134 and 150.actually i am not a diabetic patient.suggest me

  9. Sally Phillips

    My blood sugar test result is 47 making me pre-diabetic. What would this be using the old numbers eg. 5 6 or 7 ?

    • Shiv

      you can say more than 6.5 which means fair control over diabetic.

  10. Kate

    Fainted in the street.Paramedics checked my blood sugarlevls .It was 2.8.My mother had maturity onset diabetes. was this just an idiosyncraticepisode or should I seek advice?

  11. Kate

    I am not a diabetic to my knowledge. My mother did have maturity onset diabetes. Was this just an idiosyncratic moment or do I need to seek advice

  12. Kate

    Fainted yesterday , (very embarassingly in the street ). Paramedics checked my sugar level. It was 2.8. Should I be concerned

  13. mary

    Thanks, very valuable tool!

  14. aridra

    My fasting showed 114 and 2hrs post fasting was 189.what does it mean?

  15. carlos cruz

    hello I just got diagnosed with diabetes.. currently on metformin.
    my morning mg/dl level value in the mornings are between 143-146.and 2 hours after dinner its 131-138mg/dl.
    when diagnosed my A1C was 6.7 and six months later it was 6.4
    I feel like i tend to remain in the pre diabetic stage and have changed my diet and I am very active as far as exercise goes. any other suggestions to lower my mg/dl so I can get off medication?

  16. Ashok

    I am diabetic type-2 since last 4 years. My parents are also diabetic. I have not check since last 2 months. Please advise time between two checkup.

  17. JJsmat

    Thanks, will come in handy!

  18. preet

    I am 27 years ,nd my mom is diabetic,nd my bloodsugar fasting is 101 should I go to doctors clinic

    • Healthiack

      101 mg/dl fasting is borderline value.
      Read this article for more information.

  19. calis

    I am 12 years old and my grandad has diabeties because both of his parents had diabeties. Now i am having high blood sugar levels and its worrying my family. Its about 113 yesterday and 110 today i know thats not alot but its still not normal for my age. Should i go to the doctor and get tested? Or should i just not worry.

    • Healthiack

      Although your blood sugar levels are not that high, a visit to your doctor is recommended. It’s more of a precaution visit.
      Any value above 100 mg/dl is considered high for children.


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