What does your result mean?

This is your estimated A1c (percent) from your average glucose.

If you are:

1. In range: You’re within your target band. Keep the habits that are working—steady meal timing with fiber and protein, regular activity, and consistent glucose checks if you use a meter or CGM.
2. Below range: Your average glucose may be running low. Watch for low-glucose symptoms (shakiness, sweating, confusion). Add balanced carbohydrates to long gaps between meals, pair carbs with protein/healthy fats, and consider a small snack before/after exercise. Carry fast-acting carbs during longer or intense activities.
3. Above range: Your average glucose is higher than your target. Emphasize lower–glycemic-load meals (more vegetables, legumes, whole grains; fewer refined carbs), spread carbohydrates evenly across the day, add 10–20 minutes of walking after meals, prioritize sleep, and manage stress. Be consistent with any prescribed routines.

Note: Targets are guides, not medical advice. Adjust based on your symptoms, health conditions, and how you feel day to day.

How is this calculated?

Evidence baseline:

Uses the ADAG relationship between A1c and mean glucose: A1c (%) = (estimated average glucose in mg/dL + 46.7) / 28.7. A1c reflects roughly the last 2–3 months of glucose exposure due to red blood cell turnover. Based on established scientific principles.

Sized to you:

We convert your input to a single average glucose and apply the ADAG formula. If you enter mmol/L, we convert to mg/dL using ×18 before calculating. The output is rounded to one decimal place, matching typical clinical reporting.

Activity adjustment:

The formula itself doesn’t add an activity factor. Instead, your training influences the average glucose you provide—regular aerobic activity tends to lower average glucose via improved insulin sensitivity, while short intense efforts can cause brief rises. The calculator reflects these effects insofar as they change your measured average.

Environment & day-to-day:

Illness, stress, poor sleep, steroid medications, menstrual cycle phases, and meal timing can raise average glucose; increased activity and weight loss can lower it. Conditions affecting red blood cells (e.g., some anemias, hemoglobin variants, pregnancy, kidney disease) can shift A1c relative to true average glucose.

Why a range?

Glucose varies from day to day, measurements have error, and individual biology affects how glucose translates to A1c. Showing a range captures this natural variability rather than implying a single “perfect” value.

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