Blood Glucose Unit Converter

The US typically reports blood glucose in mg/dL; most other countries use mmol/L. Convert between them instantly below.

mg/dL

mmol/L

Edit either field — the other updates automatically. Formula: mmol/L = mg/dL ÷ 18.

Educational estimate, not a diagnosis. This result is general information only and does not replace advice from your doctor or diabetes care team. It does not provide medication or insulin dosing guidance. See our full medical disclaimer.

Conversion factor and general targets: American Diabetes Association

General target range reference (not individual targets)

Timing	mg/dL	mmol/L
Before a meal (fasting)	80–130	4.4–7.2
1–2 hours after a meal	<180	<10.0
Normal fasting (no diabetes)	<100	<5.6

General population reference ranges per the ADA. Your personal target range may differ — set it with your care team.

Why two units exist

Read more in mg/dL vs. mmol/L explained, and see how this relates to A1C in our A1C to eAG converter.