Blood Sugar Converter
Convert glucose readings between mg/dL and mmol/L with normal-range diabetes guide.
About the Blood Sugar Converter
Blood Sugar Converter switches a blood-glucose reading between the two common units: mg/dL (used in India, the USA and several Asian countries) and mmol/L (used in the UK, Europe, Canada and Australia). The conversion factor is exactly 1 mmol/L = 18.0182 mg/dL. After converting the value, the tool also classifies it against the WHO reference ranges — fasting normal at 70–99 mg/dL (3.9–5.5 mmol/L), pre-diabetic at 100–125 mg/dL, diabetic at ≥126 mg/dL — so you can see at a glance whether the reading is in a healthy band, borderline or elevated. Works for integer and decimal readings.
How to use
- Enter the reading and choose its current unit (mg/dL or mmol/L).
- Click Convert to see the value in the other unit.
- Read the colour-coded range hint to interpret the result.
Benefits & key features
- Conversion in both directions, with full decimal precision.
- Reference range shown next to the converted value for context.
- Works on any reading format from glucometers or lab reports.
- Pairs with the BMI and TDEE calculators for full health screening.
Pro tip
Always discuss readings with a clinician. Single readings fluctuate widely; trends across several weeks matter more than any individual measurement.