Blood Sugar Log & Trend Tracker

Log readings over time and see the trend, not just a single number. Everything is saved privately in your own browser — nothing is sent to our servers, and no account is needed.

Readings logged

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Average (mg/dL)

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Highest

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Lowest

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In general range*

*General reference range shown (70–180 mg/dL), not your personal target. See blood sugar ranges by time of day.

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.

Your log

Date	Reading	When

No readings logged yet. Add your first one above — it'll be saved automatically in this browser for next time.

Why track trends, not just single readings

A single blood sugar reading is one data point; a log of readings over days or weeks reveals patterns a single number can't — how meals, activity, or sleep affect you personally. See how often should you test your blood sugar for general guidance on building a testing routine.

Once you have a pattern, our unit converter and A1C to eAG converter can help you make sense of individual numbers alongside this log.