Blood Sugar Converter
Convert blood-glucose readings between mg/dL (US) and mmol/L (UK/Europe) using the 18.018 conversion factor.
What is Blood Sugar Converter?
Blood-glucose meters report in two unit systems. The United States and a handful of other countries use mg/dL; most of the rest of the world uses mmol/L. Travelling between systems with diabetes is easier when you can convert any reading on the fly.
How is it calculated?
1 mmol/L = 18.018 mg/dL. To convert mg/dL to mmol/L, divide by 18.018. To convert mmol/L to mg/dL, multiply by 18.018.
Frequently Asked Questions
- Which unit is more accurate?
- Both are equally accurate — they are just different units.
- Why 18.018?
- It is the molecular weight of glucose ÷ 10.
- Are normal ranges the same?
- Yes — fasting normal is < 100 mg/dL = < 5.6 mmol/L.