What "in range", "high" and "low" mean

Updated June 15, 2026

These labels compare your glucose value with the target range you set together with your care team. They tell you where a value falls, not whether something is wrong.

• In range: within your target range.
• High: above the top of your range.
• Low: below the bottom of your range.

One value is not a verdict

A single high or low reading is not a judgement. Glucose moves all day with food, activity, stress, and sleep. What matters is the pattern over time, not one point.

A common starting range

A widely used target range is 3.9 to 10.0 mmol/L (70 to 180 mg/dL), which follows the international time-in-range consensus for many adults with type 1 diabetes. Yours may be different. Set it to what you agreed on.

Glynce shows insight and trends. Treatment decisions follow your own plan and the source you and your care team rely on.