Blood Sugar Calculator

Calculate and interpret blood glucose levels. Understand normal, prediabetes, and diabetes ranges for fasting and post-meal readings.

Blood Sugar Reference Ranges

Timing Normal Prediabetes Diabetes
Fasting 70-99 mg/dL 100-125 mg/dL ≥126 mg/dL
2 hours after meal Less than 140 mg/dL 140-199 mg/dL ≥200 mg/dL
Random time Less than 180 mg/dL - ≥200 mg/dL

Important Notes

  • This tool provides general information only and is not a substitute for professional medical advice.
  • Always consult with a healthcare provider for accurate diagnosis and treatment.
  • Blood sugar targets may vary based on individual health conditions, age, and other factors.
  • If you have diabetes or suspect you might have it, work closely with your healthcare team.