What does this converter do?
This tool converts creatinine values between µmol/L, mmol/L, mg/dL, mg/100mL, mg%, mg/L, and µg/mL. It is useful when a laboratory report shows creatinine as “creat” in mg/L and you need the equivalent value in µmol/L, mmol/L, or mg/dL. The conversion is specific to creatinine and should not be used for urea, BUN, cystatin C, or other kidney markers.
Supported units
µmol/L · SI unit; also written as umol/L or mcmol/L
mmol/L · SI multiple; rarely used for serum creatinine
mg/dL · common conventional unit
mg/100mL · same as mg/dL
mg% · same as mg/dL
mg/L · common in some laboratory reports
µg/mL · same as mg/L; also written as ug/mL or mcg/mL
Conversion formulas
µmol/L = mg/dL × 88.4
mg/dL = µmol/L ÷ 88.4
µmol/L = mg/L × 8.84
mg/L = µmol/L ÷ 8.84
mmol/L = µmol/L ÷ 1000
mg/100mL = mg/dL
mg% = mg/dL
µg/mL = mg/L
Example conversion
If creatinine = 10 mg/L, then creatinine ≈ 88.4 µmol/L, ≈ 0.0884 mmol/L, and ≈ 1.0 mg/dL.
Important laboratory note
Creatinine interpretation depends on age, sex, muscle mass, kidney function, hydration status, pregnancy, medications, and local laboratory reference ranges. This converter only changes units and does not estimate eGFR or diagnose kidney disease.