What are normal blood sugar levels?

Normal fasting glucose: 70-99 mg/dL (3.9-5.5 mmol/L). Normal random glucose: under 140 mg/dL (7.8 mmol/L). Normal HbA1c: under 5.7%.

When should I check my blood sugar?

Check fasting glucose after 8+ hours without food, random glucose anytime, and post-meal glucose 2 hours after eating. Follow your healthcare provider's testing schedule.

What is HbA1c and why is it important?

HbA1c measures average blood sugar over 2-3 months. It's crucial for diabetes diagnosis and management, providing long-term glucose control assessment.

What causes high blood sugar?

High blood sugar can result from insufficient insulin, insulin resistance, stress, illness, certain medications, poor diet, or lack of physical activity.

When should I seek emergency care?

Seek immediate medical attention for glucose under 70 mg/dL with symptoms, over 400 mg/dL, or signs of diabetic ketoacidosis (DKA).

How accurate is this calculator?

This calculator uses ADA guidelines and validated risk assessment tools. However, it's for educational purposes only - always consult healthcare providers for medical decisions.

Blood Sugar Calculator

Analyze your blood glucose levels and get personalized diabetes risk assessment and recommendations

Analyze Blood Sugar

Fasting Glucose (mg/dL) *

Measured after 8+ hours of fasting

Post-Meal Glucose (mg/dL)

Measured 2 hours after eating (optional)

HbA1c (%)

Average blood sugar over 2-3 months (optional)

Diabetes History

Ready to Analyze

Enter your blood sugar readings to get detailed analysis and recommendations

**Medical Disclaimer:** The information provided by this calculator is for educational and informational purposes only and should not be considered as medical advice. Always consult with a qualified healthcare provider before making any decisions about your health or treatment. This tool is not intended to diagnose, treat, cure, or prevent any disease.