Check Your Health

Blood Sugar Converter

Switch between mg/dL and mmol/L, and check whether a reading is in the usual range for the time it was taken.

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This tool is for education only. It is not medical advice, a diagnosis or a treatment plan. Sugar Knocker is a dietary supplement, not a medicine, and does not replace prescribed treatment. Never stop or change a prescribed medicine without talking to your doctor. Nothing you enter is stored or sent anywhere.

Reference ranges

Fasting: under 100 mg/dL normal, 100 to 125 prediabetes range, 126 or more diabetes range
2 hours after a meal: under 140 mg/dL normal, 140 to 199 prediabetes range, 200 or more high
Below 70 mg/dL is low sugar

1 mmol/L = 18 mg/dL. One reading is not a diagnosis; repeat tests and your doctor decide.