Lab unit converter: mg/dL ↔ mmol/L
Convert common blood test results between US and international units.
Quick answerGlucose: mmol/L × 18.016 = mg/dL. Cholesterol: mmol/L × 38.67 = mg/dL. Triglycerides: mmol/L × 88.57 = mg/dL. Creatinine: µmol/L ÷ 88.4 = mg/dL.
See the full table, worked examples and quick sanity checks in mg/dL vs mmol/L: how to convert blood test units.
Information only. This page is general education, not medical advice. Reference ranges differ between labs, ages and sexes, and only a clinician who knows your history can interpret your results. Read the full disclaimer.
Frequently asked questions
How do I convert glucose from mmol/L to mg/dL?
Multiply by 18.016. For example 5.5 mmol/L is 99 mg/dL.
How do I convert cholesterol from mmol/L to mg/dL?
Multiply by 38.67. Total, LDL and HDL cholesterol all use the same factor, and triglycerides use 88.57.
Are the conversions medically exact?
They use the standard molecular-weight factors, rounded to four significant digits. Always use the unit and range printed on your own lab report for decisions.