| Agent |
Conventional
Unit |
Conversion
Factor |
SI Unit |
| Acetaminophen |
µg/mL |
6.62 |
µmol/L |
| Acetoacetic acid |
mg/dL |
0.098 |
mmol/L |
| Acetone |
mg/dL |
0.172 |
mmol/L |
| Alanine |
mg/dL |
112.2 |
µmol/L |
| Albumin |
g/dL |
10 |
g/L |
| Aldosterone |
ng/dL |
0.0277 |
nmol/L |
| Aluminum |
ng/mL |
0.0371 |
µmol/L |
| Aminobutyric acid |
mg/dL |
97 |
µmol/L |
| Amitriptyline |
ng/mL |
3.61 |
nmol/L |
| Ammonia (as NH3) |
µg/dL |
0.587 |
µmol/L |
| Androstenedione |
ng/dL |
0.0349 |
nmol/L |
| Angiotensin I |
pg/mL |
0.772 |
pmol/L |
| Angiotensin II |
pg/mL |
0.957 |
pmol/L |
| Anion gap |
mEq/L |
1.0 |
mmol/L |
| Antidiuretic hormone |
pg/mL |
0.923 |
pmol/L |
| Antithrombin III |
mg/dL |
10 |
mg/L |
| alpha1-Antitrypsin |
mg/dL |
0.184 |
µmol/L |
| Apolipoprotein A |
mg/dL |
0.01 |
g/L |
| Apolipoprotein B |
mg/dL |
0.01 |
g/L |
| Arginine |
mg/dL |
57.4 |
µmol/L |
| Asparagine |
mg/dL |
75.7 |
µmol/L |
| Bicarbonate |
mEq/L |
1.0 |
mmol/L |
| Bilirubin |
mg/dL |
17.1 |
µmol/L |
| Bromide |
mg/dL |
0.125 |
mmol/L |
| C-peptide |
ng/mL |
0.333 |
nmol/L |
| C1 esterase inhibitor |
mg/dL |
10 |
mg/L |
| C3 complement |
mg/dL |
0.01 |
g/L |
| C4 complement |
mg/dL |
0.01 |
g/L |
| Calcitonin |
pg/mL |
1.0 |
ng/L |
| Calcium |
mg/dL |
0.25 |
mmol/L |
| |
mEq/L |
0.50 |
mmol/L |
| Carbon dioxide |
mEq/L |
1.0 |
mmol/L |
| Carotene |
µg/dL |
0.0186 |
µmol/L |
| Ceruloplasmin |
mg/dL |
10 |
mg/L |
| Chloride |
mEq/L |
1.0 |
mmol/L |
| Cholesterol |
mg/dL |
0.0259 |
mmol/L |
| Citrate |
mg/dL |
52.05 |
µmol/L |
| Copper |
µg/dL |
0.157 |
µmoI/L |
| Coproporphyrins (urine) |
µg/24 hr |
1.527 |
nmol/d |
| Corticotropin (ACTH) |
pg/mL |
0.22 |
pmol/L |
| Cortisol |
µg/dL |
27.59 |
nmol/L |
| Cotinine |
ng/mL |
5.68 |
nmol/L |
| Creatine |
mg/dL |
76.26 |
µmol/L |
| Creatinine |
mg/dL |
88.4 |
µmol/L |
| Creatinine clearance |
mL/min |
0.0167 |
mL/s |
| Cyanide |
mg/L |
23.24 |
µmol/L |
| Dehydroepiandrosterone
(DHEA) |
ng/mL |
3.47 |
nmol/L |
| Desipramine |
ng/mL |
3.75 |
nmol/L |
| Diazepam |
µg/mL |
3.512 |
µmol/L |
| Digoxin |
ng/mL |
1.281 |
nmol/L |
| Epinephrine |
pg/mL |
5.46 |
pmol/L |
| Estradiol |
pg/mL |
3.671 |
pmol/L |
| Estriol |
ng/mL |
3.467 |
nmol/L |
| Estrone |
ng/dL |
37 |
pmoI/L |
| Ethanol (ethyl alcohol) |
mg/dL |
0.217 |
mmol/L |
| Ethylene glycol |
mg/L |
16.11 |
µmol/L |
| Ferritin |
ng/mL |
2.247 |
pmol/L |
| alpha -Fetoprotein |
ng/mL |
1.0 |
µg/L |
| Fibrinogen |
mg/dL |
0.0294 |
µmol/L |
| Fluoride |
µg/mL |
52.6 |
µmol/L |
| Folate |
ng/mL |
2.266 |
nmol/L |
| Follicle-stimulating hormone |
mIU/mL |
1.0 |
IU/L |
| Fructose |
mg/dL |
55.5 |
µmol/L |
| Galactose |
mg/dL |
55.506 |
µmol/L |
| Glucagon |
pg/mL |
1.0 |
ng/L |
| Glucose |
mg/dL |
0.0555 |
mmol/L |
| Glutamine |
mg/dL |
68.42 |
µmol/L |
Glycated hemoglobin
(glycosylated
hemoglobin A1, A1C) |
% of total
hemoglobin |
0.01 |
Proportion of total
hemoglobin |
| Glycerol (free) |
mg/dL |
108.59 |
µmol/L |
| Glycine |
mg/dL |
133.3 |
µmol/L |
| Haptoglobin |
mg/dL |
0.10 |
µmol/L |
| Hematocrit |
% |
0.01 |
Proportion
of 1.0 |
Hemoglobin (whole blood)
Mass concentration |
g/dL |
10.0 |
g/L |
| High-density lipoprotein
cholesterol (HDL-C) |
mg/dL |
0.0259 |
mmol/L |
| Histidine |
mg/dL |
64.45 |
µmol/L |
| Homocysteine (total) |
mg/L |
7.397 |
µmol/L |
| Human chorionic gonadotropin
(HCG) |
mlU/mL |
1.0 |
IU/L |
| Hydroxybutyric acid |
mg/dL |
96.05 |
µmol/L |
| Hydroxyproline |
mg/dL |
76.3 |
µmol/L |
| Immunoglobulin A (IgA) |
mg/dL |
0.01 |
g/L |
| Immunoglobulin D
(IgD) |
mg/dL |
10 |
mg/L |
| Immunoglobulin E
(IgE) |
mg/dL |
10 |
mg/L |
| Immunoglobulin G
(IgG) |
mg/dL |
0.01 |
g/L |
| Immunoglobulin M
(IgM) |
mg/dL |
0.01 |
g/L |
| Insulin |
µIU/mL |
6.945 |
pmol/L |
| Iron, total |
µg/dL |
0.179 |
µmol/L |
| Iron binding capacity, total |
µg/dL |
0.179 |
µmol/L |
| lsoleucine |
mg/dL |
76.24 |
µmol/L |
| lsopropanol |
mg/L |
0.0166 |
mmol/L |
| Lactate (lactic acid) |
mg/dL |
0.111 |
mmol/L |
Lactate dehydrogenase
isoenzymes (LD1-LD5) |
% |
0.01 |
Proportion of 1.0 |
| Lead |
µg/dL |
0.0483 |
µmol/L |
| Leucine |
mg/dL |
76.237 |
µmol/L |
| Lipids (total) |
mg/dL |
0.01 |
g/L |
| Lipoprotein (a) |
mg/dL |
0.0357 |
µmol/L |
| Lithium |
mEq/L |
1.0 |
mmol/L |
Low-density lipoprotein
cholesterol (LDL-C) |
mg/dL |
0.0259 |
mmol/L |
| Lysine |
mg/dL |
68.5 |
µmol/L |
| Magnesium |
mg/dL |
0.411 |
mmol/L |
| |
mEq/L |
0.50 |
mmol/L |
| Manganese |
ng/mL |
18.2 |
nmol/L |
| Methanol |
mg/L |
0.0312 |
mmol/L |
| Methionine |
mg/dL |
67.02 |
µmol/L |
| Myoglobin |
µg/L |
0.0571 |
nmol/L |
| Nicotine |
mg/L |
6.164 |
µmol/L |
| Nitrogen, nonprotein |
mg/dL |
0.714 |
mmol/L |
| Norepinephrine |
pg/mL |
0.00591 |
nmol/L |
| Ornithine |
mg/dL |
75.67 |
µmol/L |
| Osteocalcin |
µg/L |
0.171 |
nmol/L |
| Oxalate |
mg/L |
11.1 |
µmol/L |
| Parathyroid hormone |
pg/mL |
1.0 |
ng/L |
| Phenobarbital |
mg/L |
4.31 |
µmol/L |
| Phenylalanine |
mg/dL |
60.54 |
µmol/L |
| Phenytoin |
µg/mL |
3.96 |
µmoI/L |
| Phosphorus |
mg/dL |
0.323 |
mmol/L |
| Plasminogen |
mg/dL |
0.113 |
µmol/L |
| Plasminogen activator
inhibitor |
mIU/mL |
1.0 |
IU/L |
| Platelets
(thrombocytes) |
x 103/µL |
1.0 |
x 109/L |
| Potassium |
mEq/L |
1.0 |
mmol/L |
| Pregnanetriol (urine) |
mg/24 h |
2.97 |
µmol/d |
| Progesterone |
ng/mL |
3.18 |
nmol/L |
| Prolactin |
µg/L |
43.478 |
pmol |
| Proline |
mg/dL |
86.86 |
µmol/L |
| Prostate-specific antigen |
ng/mL |
1.0 |
µg/L |
| Protein, total |
g/dL |
10.0 |
g/L |
| Prothrombin |
g/L |
13.889 |
µmol/L |
| Protoporphyrin, erythrocyte |
µg/dL |
0.01777 |
µmol/L |
| Pyruvate |
mg/dL |
113.6 |
µmoI/L |
| Quinidine |
µg/mL |
3.08 |
µmol/L |
| Red blood cell count |
x 106/µL |
1.0 |
x 1012/L |
| Renin |
pg/mL |
0.0237 |
pmol/L |
| Salicylate |
mg/L |
0.00724 |
mmol/L |
| Serine |
mg/dL |
95.2 |
µmol/L |
| Serotonin
(5-hydroxytryptamine) |
ng/mL |
0.00568 |
µmol/L |
| Sodium |
mEq/L |
1.0 |
mmol/L |
| Somatomedin-C
(insulinlike
growth factor) |
ng/mL |
0.131 |
nmol/L (coagulation factor
II) |
| Somatostatin |
pg/mL |
0.611 |
pmol/L |
| Testosterone |
ng/dL |
0.0347 |
nmol/L |
| Theophylline |
µg/mL |
5.55 |
µmol/L |
| Thiocyanate |
mg/L |
17.2 |
µmol/L |
| Threonine |
mg/dL |
83.95 |
µmol/L |
| Thyroglobulin |
ng/mL |
1.0 |
µg/L |
| Thyroxine, free (T4) |
ng/dL |
12.87 |
pmol/L |
| Thyroxine, total (T4) |
µg/dL |
12.87 |
nmol/L |
| Transferrin |
mg/dL |
0.01 |
g/L |
| Triglycerides |
mg/dL |
0.0113 |
mmol/L |
| Triiodothyronine |
|
|
|
| Free
(T3) |
pg/dL |
0.0154 |
pmol/L |
| Total
(T3) |
ng/dL |
0.0154 |
nmol/L |
| Troponin I (cardiac) |
ng/mL |
1.0 |
µg/L |
| Troponin T (cardiac) |
ng/mL |
1.0 |
µg/L |
| Tryptophan |
mg/dL |
48.97 |
µmol/L |
| Tyrosine |
mg/dL |
55.19 |
µmol/L |
| Urea nitrogen |
mg/dL |
0.357 |
mmol/L |
| Uric acid |
mg/dL |
59.48 |
µmol/L |
| Valine |
mg/dL |
85.5 |
µmol/L |
Vasoactive intestinal
polypeptide |
pg/mL |
1.0 |
ng/L |
| Vitamin A (retinol) |
µg/dL |
0.0349 |
µmoI/L |
| Vitamin B6
(pyridoxine) |
ng/mL |
4.046 |
nmol/L |
| Vitamin B12
(cyanocobalamin) |
pg/mL |
0.738 |
pmol/L |
| Vitamin C (ascorbic acid) |
mg/dL |
56.78 |
µmol/L |
| Vitamin D |
|
|
|
| 1,25-Dihydroxyvitamin
D |
pg/mL |
2.6 |
pmol/L |
| 25-Hydroxyvitamin
D |
ng/mL |
2.496 |
nmol/L |
| Vitamin E |
mg/dL |
23.22 |
µmoI/L |
| Vitamin K |
ng/mL |
2.22 |
nmol/L |
| Warfarin |
µg/mL |
3.247 |
µmol/L |
| White blood cell count |
x 103/µL |
1.0 |
x 109/L |
| Zinc |
µg/dL |
0.153 |
µmoI/L |