Overview

The Blood Sugar Management Calculator comprehensively analyzes fasting blood glucose, postprandial blood glucose, and HbA1c (glycated hemoglobin) levels to evaluate your blood sugar management status. Diabetes is a growing chronic condition worldwide, with approximately 16% of Korean adults having diabetes or prediabetes. This tool estimates your average blood glucose over the past 2-3 months using HbA1c and assesses your current status based on diagnostic criteria for normal, prediabetes, and diabetes.

Formula

Estimated Average Glucose (eAG, mg/dL) = (HbA1c × 28.7) - 46.7

Diagnostic Criteria:
• Normal: Fasting glucose < 100, 2-hour postprandial < 140, HbA1c < 5.7%
• Prediabetes: Fasting glucose 100-125, 2-hour postprandial 140-199, HbA1c 5.7-6.4%
• Diabetes: Fasting glucose ≥ 126, 2-hour postprandial ≥ 200, HbA1c ≥ 6.5%

Example: HbA1c 7.0% → eAG = (7.0 × 28.7) - 46.7 = 154.2 mg/dL

How to Use

1. 1Enter your fasting blood glucose level (mg/dL).
2. 2Enter your 2-hour postprandial blood glucose level (mg/dL).
3. 3Enter your HbA1c (glycated hemoglobin, %) value.
4. 4Select your age and diabetes type (Type 1 / Type 2 / Gestational).
5. 5Click calculate to see your blood sugar management status and estimated average glucose.

Tips

• ✔Regular blood glucose testing is crucial; measuring HbA1c at least every 3 months is recommended.
• ✔Postprandial blood glucose is measured from the start of the meal, with a target of below 140 mg/dL.
• ✔The target HbA1c for diabetes patients is generally below 6.5%, though elderly patients or those with complications should set individual targets with their physician.
• ✔For accurate readings, wash your hands before testing and wipe away the first drop of blood, using the second drop for measurement.

FAQ