Glucose Target Zone Checker
Compare a single blood glucose reading against ADA gestational diabetes targets. Educational tool — not medical advice.
How this works
The American Diabetes Association recommends the following glucose targets during pregnancy for women with gestational diabetes:
- Fasting: <95 mg/dL (<5.3 mmol/L)
- 1 hour after meal: <140 mg/dL (<7.8 mmol/L)
- 2 hours after meal: <120 mg/dL (<6.7 mmol/L)
This tool labels readings as "borderline" when they're within 10 units above target — useful context, but not a substitute for tracking patterns over multiple days. A single reading is one data point; what matters is the pattern across your fasting and post-meal checks.
Educational tool only. Always discuss your blood glucose patterns with your healthcare provider, especially if multiple readings exceed target. Source: ADA Standards of Care 2026 (see references/clinical-stats.md).
About glucose targets in gestational diabetes
The American Diabetes Association recommends tighter glucose targets during pregnancy than for non-pregnant adults with diabetes, because maternal glucose directly affects fetal growth. The targets used by this tool are the ones currently published in the ADA Standards of Care 2026:
- Fasting: <95 mg/dL (<5.3 mmol/L)
- 1-hour postprandial: <140 mg/dL (<7.8 mmol/L)
- 2-hour postprandial: <120 mg/dL (<6.7 mmol/L)
Single readings vs. patterns. One out-of-range reading isn't a problem — what matters is the pattern. If you see the same timing repeatedly above target across multiple days, that's when adjustments are warranted (meal composition, portion sizes, timing, sometimes medication). Bring that pattern data to your provider, not single readings.
Need help interpreting trends? Our glucose tracker stores your readings, computes weekly averages, and shows pattern alerts. The complete guide to GD blood sugar monitoring covers what to track and how to act on patterns.