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Diabetes Calculators
8 tools
A1C Calculator
Convert A1C% to eAG in mg/dL and mmol/L. 2-way conversion using the ADA formula.
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Glucose to A1C
Estimate your A1C from average blood glucose readings.
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Blood Sugar Converter
Instantly convert blood sugar between mg/dL and mmol/L.
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eAG Calculator
Calculate your estimated Average Glucose from A1C.
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A1C by Age
See normal A1C reference ranges for your age group.
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HbA1c Chart
Interactive A1C to glucose chart across all clinical ranges.
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Diabetes Risk Calculator
Assess your risk for type 2 diabetes based on key factors.
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GMI Calculator
Convert CGM average glucose to Glucose Management Indicator.
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Diabetes Guides
7 guides
What Is A1C?
A complete guide to HbA1c — what it measures, how it works, and what your result means.
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Normal A1C Range
A1C ranges by age, gender, and diabetes status — with full reference tables.
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How to Lower Your A1C
8 evidence-based steps to bring your A1C down — diet, exercise, and more.
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A1C Chart
Complete A1C reference chart with eAG values, clinical ranges, and status levels.
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Prediabetes Guide
What prediabetes means, A1C ranges, and how to reverse it before it progresses.
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Foods to Lower A1C
Best foods and dietary strategies proven to lower A1C naturally.
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A1C vs Blood Sugar
The key differences between A1C and daily blood sugar readings explained clearly.
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Most popular tool
A1C Calculator — Start Here
Convert your A1C to estimated average glucose instantly. No signup. No ads. Just results.