Blood Glucose Converter
Convert blood sugar levels between mg/dL and mmol/L units
Conversion Result
mg/dL
100
US, Germany, Japan, France
mmol/L
5.55
UK, Canada, Australia, China
Fasting Classification
Prediabetes
Blood Glucose Reference Ranges
| Condition | mg/dL | mmol/L |
|---|---|---|
| Normal Fasting | 70-99 | 3.9-5.5 |
| Prediabetes Fasting | 100-125 | 5.6-6.9 |
| Diabetes Fasting | 126+ | 7.0+ |
| Normal 2hr Post-meal | < 140 | < 7.8 |
| Prediabetes 2hr Post-meal | 140-199 | 7.8-11.0 |
| Diabetes 2hr Post-meal | 200+ | 11.1+ |
| Hypoglycemia | < 70 | < 3.9 |
Important Notes
Conversion Formula: mmol/L = mg/dL ÷ 18.0182
This converter provides general reference ranges. Always consult your healthcare provider for personalized medical advice.
Target ranges may vary based on age, health conditions, and individual circumstances.
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: NIST Guide to SI Units
by National Institute of Standards
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.