Creatinine mg/dL to µmol/L Converter

About this calculator

Serum creatinine, a breakdown product of muscle creatine phosphate cleared by the kidneys, is one of the most common markers of kidney function, and it is reported in different units depending on the country: mg/dL in the United States, µmol/L (the SI unit) almost everywhere else. Because creatinine's molecular weight is 113.12 g/mol, the two are related by a fixed factor: 1 mg/dL = 88.42 µmol/L.

Mixing up the units is a genuine clinical risk — a value of ‘1.0’ means something completely different in mg/dL versus µmol/L, and eGFR formulas (like CKD-EPI or MDRD) require the correct unit as input. This converter switches a creatinine value between mg/dL and µmol/L in either direction using the standard 88.42 factor; it is informational only and not a substitute for a clinician's interpretation.