Classify your blood glucose levels, estimate type 2 diabetes risk factors, and view clinical recommendations.
This calculator runs locally. No glucose levels, age profiles, or clinical health markers are saved or shared. Outputs follow standard ADA screening metrics and are for informational purposes only. Do **not** use results as a replacement for formal lab tests or doctor diagnoses.
Quickly evaluate typical blood glucose ranges and demographic risks:
Input your fasting, post-meal glucose, height, and lifestyle habits to calculate categories, BMI factors, and type 2 diabetes risk scoring.
Your blood glucose values reside in the diabetes range. Please consult a qualified endocrinologist or healthcare provider for professional laboratory screening (Fasting Blood Sugar test or formal HbA1c assay) to establish diagnostic confirmation.
Blood sugar thresholds and clinical metrics established by the American Diabetes Association.
| Category | Fasting Glucose | Post-Meal Glucose |
|---|---|---|
| Normal | < 100 mg/dL (< 5.6 mmol/L) | < 140 mg/dL (< 7.8 mmol/L) |
| Prediabetes | 100 – 125 mg/dL (5.6 – 6.9 mmol/L) | 140 – 199 mg/dL (7.8 – 11.0 mmol/L) |
| Diabetes | ≥ 126 mg/dL (≥ 7.0 mmol/L) | ≥ 200 mg/dL (≥ 11.1 mmol/L) |
| HbA1c Level | Percentage (%) | Estimated Avg. Glucose (eAG) |
|---|---|---|
| Normal | < 5.7% | < 117 mg/dL (< 6.5 mmol/L) |
| Prediabetes | 5.7% – 6.4% | 117 – 137 mg/dL (6.5 – 7.6 mmol/L) |
| Diabetes | ≥ 6.5% | ≥ 140 mg/dL (≥ 7.8 mmol/L) |
Understanding blood sugar dynamics, type 2 diabetes risk factors, and proactive health adaptations.
Insulin resistance occurs when cells in your muscles, fat, and liver do not respond properly to insulin, the hormone responsible for moving glucose from blood into cells. The pancreas works overtime to produce more insulin, keeping blood sugar normal initially. Over years, the pancreas cannot keep up, resulting in elevated blood glucose (prediabetes and type 2 diabetes).
Type 2 diabetes risk increases due to a combination of genetic and lifestyle factors. Major influences include being over the age of 45, carrying excess visceral fat (higher waist circumference and BMI), sitting for long periods, having a primary relative with diabetes, and having a history of gestational diabetes or high blood pressure.
Most cases of type 2 diabetes are preventable or delayable. Clinical trials prove that a moderate weight loss of 5% to 7% of body weight, combined with 150 minutes of brisk walking or moderate physical activity per week, reduces diabetes incidence by up to 58% in high-risk groups. Nutrition plans emphasizing complex carbohydrates, fibers, and lean proteins are vital.
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Fasting blood sugar is measured after not eating for at least 8 hours (usually overnight). Post-meal (postprandial) blood sugar is measured 2 hours after the start of a meal, showing how effectively your body processes glucose after eating.
HbA1c (glycated hemoglobin) measures the average percentage of blood sugar bound to red blood cells over the past 2 to 3 months. It provides a long-term picture of blood sugar control and is a primary tool for diagnosing prediabetes and diabetes.
Blood glucose can be measured in milligrams per deciliter (mg/dL) or millimoles per liter (mmol/L). To convert mmol/L to mg/dL, multiply by 18.0182. To convert mg/dL to mmol/L, divide by 18.0182. This calculator does this automatically.
Insulin resistance is a condition where body cells do not respond effectively to insulin, a hormone that helps glucose enter cells. As a result, the pancreas produces more insulin, but over time, blood glucose levels rise, which can lead to prediabetes and type 2 diabetes.
Yes, prediabetes is often reversible. Making structural lifestyle changes—such as losing 5% to 7% of body weight, engaging in at least 150 minutes of moderate physical activity weekly, eating a fiber-rich diet, and reducing refined carbohydrates—can delay or prevent type 2 diabetes.
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