Note: these conversions come from outside sources. If you see an error or a common conversion we have left out, don't be afraid to email us.

ComponentConventional UnitConversion FactorSI Unit
Acetaminophenug/mL6.62umol/L
Acetoacetic acidmg/dL0.098mmol/L
Acetonemg/dL0.172mmol/L
Acid phosphataseunits/L1U/L
Alaninemg/dL112.2umol/L
Alanine aminotransferase (ALT)units/L1U/L
Albuming/dL10g/L
Alcohol dehydrogenaseunits/L1U/L
Aldolaseunits/L1U/L
Aldosteroneng/dL0.0277nmol/L
Alkaline phosphataseunits/L1U/L
Aluminumng/mL0.0371umol/L
Aminobutyric acidmg/dL97umol/L
Amitriptylineng/mL3.61nmol/L
Ammonia (as NH3)ug/dL0.587umol/L
Amylaseunits/L1U/L
Androstenedioneng/dL0.0349nmol/L
Angiotensin Ipg/mL0.772pmol/L
Angiotensin IIpg/mL0.957pmol/L
Anion gapmEq/L1mmol/L
Antidiuretic hormonepg/mL0.923pmol/L
Antithrombin IIImg/dL10mg/L
alpha1-Antitrypsinmg/dL0.184umol/L
Apolipoprotein Amg/dL0.01g/L
Apolipoprotein Bmg/dL0.01g/L
Argininemg/dL57.4umol/L
Asparaginemg/dL75.7umol/L
Aspartate aminotransferase (AST)units/L1U/L
BicarbonatemEq/L1mmol/L
Bilirubinmg/dL17.1umol/L
Paco2 Blood gas (arterial)mm Hg1mm Hg
pH Blood gas (arterial)pH units1pH units
Pao2 Blood gas (arterial)mm Hg1mm Hg
Bromidemg/dL0.125mmol/L
C-peptideng/mL0.333nmol/L
C1 esterase inhibitormg/dL10mg/L
C3 complementmg/dL0.01g/L
C4 complementmg/dL0.01g/L
Calcitoninpg/mL1ng/L
Calciummg/dL0.25mmol/L
CalciummEq/L0.5mmol/L
Carbon dioxidemEq/L1mmoI/L
Carboxyhemoglobin% of Hb Saturation0.01Proportion of HbSaturation
Caroteneug/dL0.0186umol/L
Ceruloplasminmg/dL10mg/L
ChloridemEq/L1mmol/L
Cholesterolmg/dL0.0259mmol/L
Citratemg/dL52.05umol/L
Copperug/dL0.157umoI/L
Coproporphyrins (urine)ug/24 hr1.527nmol/d
Corticotropin (ACTH)pg/mL0.22pmol/L
Cortisolug/dL27.59nmol/L
Cotinineng/mL5.68nmol/L
Creatinemg/dL76.26umol/L
Creatine kinase (CK)units/L1U/L
Creatininemg/dL88.4umol/L
Creatinine clearancemL/min0.0167mL/s
Cyanidemg/L23.24umol/L
Dehydroepiandrosterone (DHEA)ng/mL3.47nmol/L
Desipramineng/mL3.75nmol/L
Diazepamug/mL3.512umol/L
Digoxinng/mL1.281nmol/L
Epinephrinepg/mL5.46pmol/L
Erythrocyte sedimentation ratemm/h1mm/h
Estradiolpg/mL3.671pmol/L
Estriolng/mL3.467nmol/L
Estroneng/dL37pmoI/L
Ethanol (ethyl alcohol)mg/dL0.217mmol/L
Ethylene glycolmg/L16.11umol/L
Ferritinng/mL2.247pmol/L
alpha -Fetoproteinng/mL1ug/L
Fibrinogenmg/dL0.0294umol/L
Fluorideug/mL52.6umol/L
Folateng/mL2.266nmol/L
Follicle-stimulating hormonemIU/mL1IU/L
Fructosemg/dL55.5umol/L
Galactosemg/dL55.506umol/L
Glucagonpg/mL1ng/L
Glucosemg/dL0.0555mmol/L
Glutaminemg/dL68.42umol/L
gamma -Glutamyltransferase (GGT)units/L1U/L
Glycated Hb (glycosylated, Hb A1, A1C)% of total Hb0.01Proportion of total Hb
Glycerol (free)mg/dL108.59umol/L
Glycinemg/dL133.3umol/L
Haptoglobinmg/dL0.1umol/L
Hematocrit%0.01proportion of 1.0
Hemoglobin (Whole Blood)g/dL10g/L
Hemoglobin (Mass Concentration)g/dL0.6206mmol/L
High-density lipoprotein cholesterol (HDL-C)mg/dL0.0259mmol/L
Histidinemg/dL64.45umol/L
Homocysteine (total)mg/L7.397umol/L
Human chorionic gonadotropin (HCG)mlU/mL1IU/L
Hydroxybutyric acidmg/dL96.05umol/L
Hydroxyprolinemg/dL76.3umol/L
Immunoglobulin A (IgA)mg/dL0.01g/L
Immunoglobulin D (IgD)mg/dL10mg/L
Immunoglobulin E (IgE)mg/dL10mg/L
Immunoglobulin G (IgG)mg/dL0.01g/L
Immunoglobulin M (IgM)mg/dL0.01g/L
InsulinIU/mL6.945pmol/L
Iron, totalug/dL0.179umol/L
Iron binding capacity, totalug/dL0.179umol/L
lsoleucinemg/dL76.24umol/L
lsopropanolmg/L0.0166mmol/L
Lactate (lactic acid)mg/dL0.111mmol/L
Lactate dehydrogenaseunits/L1U/L
Lactate dehydrogenase isoenzymes (LD1-LD5)%0.01Proportion of 1.0
Leadug/dL0.0483umol/L
Leucinemg/dL76.237umol/L
Lipaseunits/L1U/L
Lipids (total)mg/dL0.01g/L
Lipoprotein (a)mg/dL0.0357umol/L
LithiummEq/L1mmol/L
Low-density lipoprotein cholesterol (LDL-C)mg/dL0.0259mmol/L
Luteinizing hormone (LH, leutropin)IU/L1lU/L
Lysinemg/dL68.5umol/L
Magnesium mg/dL0.411mmol/L
MagnesiummEq/L0.5mmol/L
Manganeseng/mL18.2nmol/L
Methanolmg/L0.0312mmol/L
Methemoglobin% of total hemoglobin0.01Proportion of total hemoglobin
Methioninemg/dL67.02umol/L
Myoglobinug/L0.0571nmol/L
Nicotinemg/L6.164umol/L
Nitrogen, nonproteinmg/dL0.714mmol/L
Norepinephrinepg/mL0.00591nmol/L
Ornithinemg/dL75.67umol/L
OsmolalitymOsm/kg1mmoI/kg
Osteocalcinug/L0.171nmol/L
Oxalatemg/L11.1umol/L
Parathyroid hormonepg/mL1ng/L
Phenobarbitalmg/L4.31umol/L
Phenylalaninemg/dL60.54umol/L
Phenytoinug/mL3.96umoI/L
Phosphorusmg/dL0.323mmol/L
Plasminogenmg/dL0.113umol/L
Plasminogen%0.01Proportion of 1.0
Plasminogen activator inhibitormIU/mL1IU/L
Platelets (thrombocytes)x 103/L1x 109/L
PotassiummEq/L1mmoI/L
Pregnanediol (urine)mg/24h3.12umoI/d
Pregnanetriol (urine)mg/24 h2.97umol/d
Progesteroneng/mL3.18nmol/L
Prolactinug/L43.478pmol
Prolinemg/dL86.86umol/L
Prostate-specific antigenng/mL1ug/L
Protein, totalg/dL10g/L
Prothrombing/L13.889umol/L
Prothrombin time (protime, PT)s1s
Protoporphyrin, erythrocyteug/dL0.01777umol/L
Pyruvatemg/dL113.6umoI/L
Quinidineug/mL3.08umol/L
Red blood cell countx 106/L1x 1012/L
Reninpg/mL0.0237pmol/L
Reticulocyte count% of RBCs0.01Proportion of 1.0
Salicylatemg/L0.00724mmol/L
Serinemg/dL95.2umol/L
Serotonin (5-hydroxytryptamine)ng/mL0.00568umol/L
SodiummEq/L1mmol/L
Somatomedin-C (insulinlike growth factor)ng/mL0.131nmol/L (coagulation factor II)
Somatostatinpg/mL0.611pmol/L
Taurinemg/dL79.91umol/L
Testosteroneng/dL0.0347nmol/L
Theophyllineug/mL5.55umol/L
Thiocyanatemg/L17.2umol/L
Threoninemg/dL83.95umol/L
Thyroglobulinng/mL1ug/L
Thyrotropin (thyroid-stimulating hormone, TSH)mIU/L1mIU/L
Thyroxine, free (T4)ng/dL12.87pmol/L
Thyroxine, total (T4)ug/dL12.87nmol/L
Transferrinmg/dL0.01g/L
Triglyceridesmg/dL0.0113mmol/L
Free (T3) Triiodothyroninepg/dL0.0154pmol/L
Resin uptake Triiodothyronine%0.01Proportion of 1.0
Total (T3) Triiodothyronineng/dL0.0154nmol/L
Troponin I (cardiac)ng/mL1ug/L
Troponin T (cardiac)ng/mL1ug/L
Tryptophanmg/dL48.97umol/L
Tyrosinemg/dL55.19umol/L
Urea nitrogenmg/dL0.357mmol/L
Uric acidmg/dL59.48umol/L
Valinemg/dL85.5umol/L
Vasoactive intestinal polypeptidepg/mL1ng/L
Vitamin A (retinol)ug/dL0.0349umoI/L
Vitamin B6 (pyridoxine)ng/mL4.046nmol/L
Vitamin B12 (cyanocobalamin)pg/mL0.738pmol/L
Vitamin C (ascorbic acid)mg/dL56.78umol/L
1,25-Dihydroxyvitamin Dpg/mL2.6pmol/L
25-Hydroxyvitamin Dng/mL2.496nmol/L
Vitamin Emg/dL23.22umoI/L
Vitamin Kng/mL2.22nmol/L
Warfarinug/mL3.247umol/L
White blood cell countx 103/L1x 109/L
White blood cell differential count (number fraction)%0.01Proportion of 1.0
Zincug/dL0.153umoI/L