TABLE 8: Table 8. Clinical Chemistry SI Conversion Factors* Close this PagePrint This Page
 Conventional (USA) Units Conversion Factor (×) SI Units
Alkaline phosphataseIU/L 1.0U/L
ALTU/L 1.0U/L
Albuming/dL 10.0g/L
Ammonia (NH4)µg/dL 0.5872µmol/L
AmylaseSomogyi units 1.85U/L
ASTU/L 1.0U/L
Bilirubinmg/dL 17.10µmol/L
Calciummg/dL 0.25mmol/L
Carbon dioxidemEq/L 1.0mmol/L
ChloridemEq/L 1.0mmol/L
Cholesterolmg/dL 0.026mmol/L
Copperµg/dL0.16µmol/L
Cortisolµg/dL 0.0276µmol/L
Creatine kinaseIU/L 1.0U/L
Creatininemg/dL 88.40µmol/L
Fibrinogenmg/dL 0.01g/L
Glucosemg/dL 0.055mmol/L
Iron, bindingµg/dL 0.179µmol/L
Iron, totalµg/dL 0.179µmol/L
LipaseIU/L Cherry-Crandall U 1 278U/L U/L
MagnesiummEq/L 0.5mmol/L
OsmolalityOsm/kg 1.0mmol/L
Phosphorusmg/dL 0.323mmol/L
PotassiummEq/L 1.0mmol/L
Protein, totalg/dL 10.0g/L
SodiummEq/L 1.0mmol/L
Triglyceridesmg/dL0.011mmol/L
Tri-iodothyronine (T3)µg/dL15.6nmol/L
Thyroxine (T4)µg/dL 12.87nmol/L
Urea nitrogenmg/dL 0.357mmol/L
Uric acidmg/dL 0.059mmol/L
Urine protein/creatinine ratiog/g0.113g/mmol
Xylose absorptionmg/dL 0.067mmol/L
*Adapted from Veterinary Laboratory Medicine: Interpretation and Diagnosis, Meyer D.H., Coles E.H., Rich L.J., 2nd ed., Copyright, 1998, with permission from Elsevier.