Creatinine Converter (mg/dL to µmol/L)
Convert serum or urine creatinine between mg/dL, µmol/L and mmol/L (1 mg/dL = 88.42 µmol/L), with typical adult reference ranges and a quick conversion chart.
How it works
µmol/L = mg/dL × 88.42 · mg/dL = µmol/L ÷ 88.42 · mmol/L = µmol/L ÷ 1,000 (creatinine molar mass 113.12 g/mol)
Creatinine weighs 113.12 g per mole, so 1 mg/dL (10 mg/L) equals 10 ÷ 113.12 mmol/L = 0.08842 mmol/L, or 88.42 µmol/L. Serum creatinine is reported in mg/dL in the United States and much of Latin America and in µmol/L in the UK, Europe, Canada and Australia; urine creatinine is often reported in mmol/L. Reference ranges are those of Mayo Clinic Laboratories for adults; they vary by laboratory, muscle mass, age and sex, so kidney function should be judged with an eGFR rather than creatinine alone.
Worked example
A serum creatinine of 1.00 mg/dL × 88.42 = 88.4 µmol/L (0.0884 mmol/L), within the typical range for both men and women. Going the other way, 150 µmol/L ÷ 88.42 = 1.70 mg/dL.
Sources: Mayo Clinic Laboratories: Creatinine, Serum — reference values · NIDDK: Laboratory evaluation — creatinine standardization and units
Frequently asked questions
How do I convert creatinine from µmol/L to mg/dL?
Divide by 88.42 (88.4 is commonly used). For example 100 µmol/L ÷ 88.42 = 1.13 mg/dL and 60 µmol/L = 0.68 mg/dL.
What is a normal creatinine level?
Roughly 0.74–1.35 mg/dL (65–119 µmol/L) for adult men and 0.59–1.04 mg/dL (52–92 µmol/L) for adult women (Mayo Clinic Laboratories). Muscular people run higher and older or frail people lower, which is why eGFR equations adjust for age and sex.
How do I convert urine creatinine in mmol/L to mg/dL?
Multiply mmol/L by 11.31 (that is, by 1,000 ÷ 88.42). A urine creatinine of 10 mmol/L equals 113 mg/dL.
Is creatinine in mg/dL the same as mg/100 mL?
Yes. A decilitre is 100 mL, so 1.2 mg/dL means 1.2 mg per 100 mL, or 12 mg/L.
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Educational calculation only, not medical advice or a diagnosis. Reference ranges and units differ between laboratories; interpret any result with your doctor in the context of your full clinical picture.