HbA1c to Average Sugar Calculator
Type your HbA1c to see your average blood sugar of the last 2–3 months — or type an average sugar to see the matching HbA1c.
Check it with a blood test
Fasting Blood Sugar (FBS) Test ₹80 Hba1c ₹420 HbA1c Test – Average Blood Sugar Test ₹420 WOMEN BASIC PROFILE WITH UTSH ₹2,055 JAANCH - WOMENS SKIN CARE CHECKUP ₹3,525 Book home collectionHow it works
HbA1c shows how much sugar has stuck to your red blood cells over about 3 months. The calculator uses the standard ADAG formula: average glucose (mg/dL) = 28.7 × HbA1c − 46.7.
Usual cut-offs for adults: below 5.7% is normal, 5.7–6.4% is the prediabetes range, and 6.5% or more is in the diabetes range. Your doctor decides the diagnosis and your own target.
HbA1c to Average Sugar – FAQs
What is a normal HbA1c?
For adults without diabetes, an HbA1c below 5.7% is usually normal. 5.7% to 6.4% is called prediabetes, and 6.5% or more is in the diabetes range. People with diabetes often aim for around 7% or as advised by their doctor.
Is fasting needed for the HbA1c test?
No. HbA1c can be done at any time of the day without fasting. If you also take a fasting blood sugar test in the same sample, fast for 8–10 hours.
How often should HbA1c be checked?
Many doctors advise every 3 months for people with diabetes and once a year for people at risk. Follow your doctor's advice.
This calculator is a simple guide for adults, not a diagnosis. Please talk to your doctor about your results. Not for children or pregnancy.
