Henry has given you the scientific answer.

If you don't usually test then it's expected that you have no idea what they mean and the Doc would never have given you a "range" where they would like your blood to be or what it means.

Seeing that you are in Alberta it makes sense that your Libre is measuring in mmol's which is the system we use in Canada (and most of the Commonwealth Countries) which is a different system then the Americans use (so doesn't look like many of the blood sugar numbers you see posted up here).

The Libre is a great tool for those that just can't stand the sight of blood 😀

Depending on your age, other diseases and what if any medications you are on Diabetes Canada has set "ranges" that you can target for your blood sugar.

Staying within your "range" is an attempt to best manage your diabetes.

Unless your doctor has given you advice otherwise the following would be the standard ranges:

4.0 to 7.0 when fasting - so whatever your reading is when you first wake up in the morning or anytime you haven't eaten for (about) 5 or 6 hours.

5.0 to 10.0 two hours after you start eating a meal - so from the first bite, 2 hours later whatever that number is

If you were directed to follow the (tighter controls) then your after eating range would be 5.0 to 8.0

Those are just the national guidelines, your doctor could set your range differently to meet specific health goals.

While those numbers "look like" the A1C number (from your lab blood tests) that your Doctor may discuss, while they are "related" your meter is not giving you an A1C number, it is you "blood glucose level" at that second in time when the meter gives you that reading.

Hi @A DiabetesTeam Member,
mmol/L is a concentration measurement of sugar / glucose molecules in your blood.

Hold on to your seats. You would probably do good to ignore the technical explanation that follows, but I put it here because you asked and a chemist it's my wheelhouse.

The technical / chemistry answer - mmol - is milli mole or 1 thousands of a mole. A mole is the number of atoms or molecules in the molecular weight of a substance.

The molecular weight of water H2O is about 18 grams per mole. This is where Avogadro's number (Phone number can only be seen by the question and answer creators),000,000,000 also known as 602 sextillion, or 6.02x10 to the 23rd power.

Mole is the shorthand for this huge number of molecules or atoms.

L or litre is a measurement of volume. It is equal to 1000 mL and about 1000 grams, a kilogram of water.

This technical explanation makes most people's heads explode.

So you would probably do good to ignore the technical explanation.

We learn something new everyday.

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A Diabete...

Hi GrahamLamb: Thank you for the info.