Lab units · creatinine
Creatinine converter, mg/dL to µmol/L.
Convert a serum creatinine value between mg/dL (US) and µmol/L (Canada, UK, Europe, Australia). The factor is 88.4. This page does not calculate eGFR or judge kidney function.
Convert a creatinine value
Result
Enter a creatinine value in either box.
How the conversion works
Creatinine has a molar mass of 113.12 g/mol. Converting mg/dL to mg/L (× 10) and dividing by the molar mass gives micromoles per litre: 10 000 ÷ 113.12 = 88.4. So µmol/L = mg/dL × 88.4 and mg/dL = µmol/L ÷ 88.4.
Worked example
1.0 mg/dL = 1.0 × 88.4 = 88 µmol/L. 100 µmol/L = 100 ÷ 88.4 = 1.13 mg/dL.
Creatinine conversion chart
| mg/dL | µmol/L |
|---|---|
| 0.5 mg/dL | 44 µmol/L |
| 0.7 mg/dL | 62 µmol/L |
| 0.9 mg/dL | 80 µmol/L |
| 1.0 mg/dL | 88 µmol/L |
| 1.2 mg/dL | 106 µmol/L |
| 1.5 mg/dL | 133 µmol/L |
| 2.0 mg/dL | 177 µmol/L |
| 3.0 mg/dL | 265 µmol/L |
| 5.0 mg/dL | 442 µmol/L |
What this page does not do
Creatinine is one input to estimated kidney-function equations, and those also use age, sex and a calibration that differs by laboratory. This tool does not compute eGFR and does not say whether a value is high or low, because ranges differ by lab, muscle mass, age and sex. Use the range printed on your laboratory report.
Sources
Molar mass from NIH PubChem; the 88.4 factor is the standard SI conversion used in laboratory reporting.
Frequently asked questions
How do I convert creatinine from mg/dL to µmol/L?
Multiply by 88.4. For example 1.2 mg/dL × 88.4 = 106 µmol/L.
How do I convert µmol/L to mg/dL?
Divide by 88.4. For example 70 µmol/L ÷ 88.4 = 0.79 mg/dL.
Is µmol/L the same as umol/L?
Yes. µ is the Greek letter mu, often typed as u. Some reports also write it as mcmol/L.
Does this calculate GFR?
No. It only converts the unit. Kidney-function estimates need a validated equation and a clinician to interpret them.
Reference information, not medical advice
This page converts units only. It does not interpret a result, and units and reference intervals differ between laboratories. Ask the clinician who ordered the test or the reporting laboratory what a result means for you. If you are worried about a result or symptoms, contact a health professional; in an emergency call your local emergency number.