Time in Range (70-140 mg/dL)
Percentage of time glucose stays within healthy range
Why Time in Range (70-140 mg/dL) matters
Key CGM metric for metabolic health. Higher time in range associated with better long-term outcomes. Reveals glycemic variability.
Reference Range
Healthy adults: median 96% (IQR 93-98%)
Sourced reference
Near the healthy-adult median of 96%
Targets by source
Each position below is attributed and linked to the document that states it. Several are population percentiles or averages rather than targets; the note says which. How we verify ranges.
- Median 96% of the day (IQR 93-98%)Healthy nondiabetic participants on Dexcom G6 (Shah 2019, J Clin Endocrinol Metab; n=153)A description of healthy people, not a target. Median time above 140 mg/dL was 2.1% (about 30 minutes a day).
Devices that measure this
Devices in our comparisons whose published specs list this metric:
Track Your Glucose
Monitor Time in Range (70-140 mg/dL) with wearables and health tracking devices
Health Disclaimer
This information is for educational purposes only. Consult a healthcare provider for personalized health recommendations.
Last reviewed Sep 23, 2026 · First published Oct 1, 2025