US labs report most results in mg/dL, while most other countries use SI units. The conversion factor depends on the molar mass of each substance, so there is no single factor for all tests.
How to use the mmol/L to mg/dL Converter
- Test
- Value in SI units
- Every result field is editable: type into Value in mg/dL and Value in SI units plus every other field update to match.
Results update as you type, and every field accepts the units shown in its menu.
How it works
Choose the test and enter the value in SI units; type into the result to convert from mg/dL.
Conversion factors (SI → mg/dL)
| Test | Multiply SI value by |
|---|---|
| Glucose | 18.016 |
| Cholesterol (total, LDL, HDL) | 38.67 |
| Triglycerides | 88.57 |
| Urea nitrogen (BUN, from urea mmol/L) | 2.801 |
| Calcium | 4.008 |
| Magnesium | 2.431 |
| Phosphate | 3.097 |
| Uric acid | 16.81 |
| Creatinine (µmol/L) | 0.01131 |
| Bilirubin (µmol/L) | 0.05848 |
| Iron (µmol/L) | 5.585 |
| Lactate | 9.008 |
Inputs explained
| Field | What to enter |
|---|---|
| Test | Choose one: Glucose, Cholesterol (total, LDL, HDL), Triglycerides, Urea nitrogen (BUN, from urea mmol/L) … |
| Value in SI units | A number |
Health note: this calculator is for education and screening only and is not a diagnosis or treatment advice. Discuss your results with a qualified clinician.
Formula
mg/dL = mmol/L × factor (factor = molar mass ÷ 10)
Creatinine and bilirubin: mg/dL = µmol/L × factor
Worked example
Inputs — Test: Glucose; Value in SI units: 5.5.
Results — Value in mg/dL = 99.09 mg/dL.
Key terms
- SI units
- International System of Units, e.g. mmol/L.
Frequently asked questions
Why do conversion factors differ?
Each substance has a different molar mass.
What is 5.5 mmol/L glucose in mg/dL?
About 99 mg/dL.
What is 88 µmol/L creatinine in mg/dL?
About 1.0 mg/dL.