Lab values: reference ranges in two units
The table shows, for each lab test, the reference or target range in two common units, with a link to the source. These are general orientation values: ranges differ between laboratories, methods, age and sex. The range printed on your own report is the one that applies. This page does not interpret results and is not medical advice.
Blood count
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Basophils | 0 – 0.2 10⁹/L | 0 – 200 /µL | GPnotebook |
| Eosinophils | 0.04 – 0.44 10⁹/L | 40 – 440 /µL | GPnotebook |
| Hematocrit | 34 – 48 % (men: 37 – 48; women: 34 – 43) | 0.34 – 0.48 L/L (men: 0.37 – 0.48; women: 0.34 – 0.43) | MedlinePlus (US National Library of Medicine) |
| Hemoglobin | 121 – 172 g/L (men: 138 – 172; women: 121 – 151) | 7.511 – 10.68 mmol/L (men: 8.566 – 10.68; women: 7.511 – 9.373) | MedlinePlus (US National Library of Medicine) |
| Lymphocytes | 1 – 4 10⁹/L | 1000 – 4000 /µL | GPnotebook |
| Mean corpuscular hemoglobin concentration (MCHC) | 32 – 36 g/dL | 320 – 360 g/L | MedlinePlus (US National Library of Medicine) |
| Monocytes | 0.2 – 0.8 10⁹/L | 200 – 800 /µL | GPnotebook |
| Neutrophils | 2 – 7.5 10⁹/L | 2000 – 7500 /µL | GPnotebook |
| Platelets | 150 – 400 10⁹/L | 150 000 – 400 000 /µL | MedlinePlus (US National Library of Medicine) |
| Red blood cells | 3.8 – 5.7 10¹²/L (men: 4.2 – 5.7; women: 3.8 – 5.1) | 3 800 000 – 5 700 000 /µL (men: 4 200 000 – 5 700 000; women: 3 800 000 – 5 100 000) | MedlinePlus (US National Library of Medicine) |
| WBC | 4.5 – 11 10⁹/L | 4500 – 11 000 /µL | MedlinePlus (US National Library of Medicine) |
Blood gases & acid-base
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Bicarbonate | 22 – 29 mmol/L | ACB / Pathology Harmony (UK) | |
| Lactate | 0.5 – 2.2 mmol/L | 4.505 – 19.82 mg/dL | MedlinePlus (US National Library of Medicine) |
| pCO2 | 38 – 42 mmHg | 5.066 – 5.599 kPa | MedlinePlus (US National Library of Medicine) |
| pO2 | 75 – 100 mmHg | 9.999 – 13.33 kPa | MedlinePlus (US National Library of Medicine) |
| Total CO2 | 23 – 29 mmol/L | MedlinePlus (US National Library of Medicine) |
Electrolytes & minerals
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Anion gap | 8 – 12 mmol/L | Journal articles (PubMed Central) | |
| Calcium | 2.2 – 2.6 mmol/L | 0.0882 – 0.1042 g/L | ACB / Pathology Harmony (UK) |
| Chloride | 95 – 108 mmol/L | 3.368 – 3.828 g/L | ACB / Pathology Harmony (UK) |
| Copper | 11 – 22 µmol/L (men: 11 – 22; women: 12.6 – 24.3) | 69.89 – 139.8 µg/dL (men: 69.89 – 139.8; women: 80.05 – 154.4) | Alfred Health Pathology |
| Ionized calcium | 1.2 – 1.4 mmol/L | 2.4 – 2.8 mEq/L | MedlinePlus (US National Library of Medicine) |
| Magnesium | 0.7 – 1 mmol/L | 0.017 – 0.0243 g/L | ACB / Pathology Harmony (UK) |
| Phosphate | 0.8 – 1.5 mmol/L | 0.0248 – 0.0465 g/L | ACB / Pathology Harmony (UK) |
| Potassium | 3.5 – 5.3 mmol/L | 0.1368 – 0.2072 g/L | ACB / Pathology Harmony (UK) |
| Selenium | 0.8 – 1.4 µmol/L | 63.19 – 110.6 µg/L | Alfred Health Pathology |
| Serum osmolality | 275 – 295 mOsm/kg | ACB / Pathology Harmony (UK) | |
| Sodium | 135 – 145 mmol/L | 3.104 – 3.334 g/L | MedlinePlus (US National Library of Medicine) |
| Zinc | 10 – 18 µmol/L | 65.4 – 117.7 µg/dL | Journal articles (PubMed Central) |
Kidney
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Creatinine | 44 – 115 µmol/L (men: 62 – 115; women: 44 – 84) | 0.044 – 0.115 mmol/L (men: 0.062 – 0.115; women: 0.044 – 0.084) | MedlinePlus (US National Library of Medicine) |
| Cystatin C | 0.59 – 1.28 mg/L | 44.22 – 95.93 nmol/L | Alfred Health Pathology |
| eGFR | 90 – 120 mL/min/1.73 m² | 1.5 – 2 mL/s/1.73 m² | MedlinePlus (US National Library of Medicine) |
| Urea | 2.5 – 7.8 mmol/L | 0.1502 – 0.4685 g/L | ACB / Pathology Harmony (UK) |
| Uric Acid | 140 – 430 µmol/L (men: 200 – 430; women: 140 – 360) | 0.14 – 0.43 mmol/L (men: 0.2 – 0.43; women: 0.14 – 0.36) | ACB / Pathology Harmony (UK) |
Liver & pancreas
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Alkaline phosphatase | 30 – 130 U/L | 0.5 – 2.167 µkat/L | ACB / Pathology Harmony (UK) |
| ALT | 4 – 36 U/L | 0.0667 – 0.6 µkat/L | MedlinePlus (US National Library of Medicine) |
| Ammonia | 10.7 – 32 µmol/L | 18.23 – 54.51 µg/dL | MedlinePlus (US National Library of Medicine) |
| Amylase | 40 – 140 U/L | 0.6667 – 2.333 µkat/L | MedlinePlus (US National Library of Medicine) |
| AST | 8 – 33 U/L | 0.1333 – 0.55 µkat/L | MedlinePlus (US National Library of Medicine) |
| Cholinesterase | 3100 – 6500 U/L | 51.67 – 108.3 µkat/L | MedlinePlus (US National Library of Medicine) |
| Direct bilirubin | 0 – 5.1 µmol/L | 0 – 0.2982 mg/dL | MedlinePlus (US National Library of Medicine) |
| GGT | 5 – 40 U/L | 0.0833 – 0.6667 µkat/L | MedlinePlus (US National Library of Medicine) |
| LDH | 125 – 220 U/L | 2.083 – 3.667 µkat/L | MedlinePlus (US National Library of Medicine) |
| Lipase | 0 – 160 U/L | 0 – 2.667 µkat/L | MedlinePlus (US National Library of Medicine) |
| Total bilirubin | 0 – 21 µmol/L | 0 – 1.228 mg/dL | ACB / Pathology Harmony (UK) |
Diabetes & metabolism
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| C-peptide | 0.3 – 3.3 ng/mL | 0.0993 – 1.093 nmol/L | MedlinePlus (US National Library of Medicine) |
| Glucagon | 25 – 50 pg/mL | 7.178 – 14.36 pmol/L | MedlinePlus (US National Library of Medicine) |
| Glucose | 3.9 – 5.5 mmol/L | 0.7026 – 0.9908 g/L | NIDDK (NIH) |
| HbA1c | 4 – 5.6 % | 20.2 – 37.69 mmol/mol | NIDDK (NIH) |
Lipids
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Apolipoprotein B | 0.5 – 1.5 g/L | 50 – 150 mg/dL | MedlinePlus (US National Library of Medicine) |
| LDL cholesterol | 0 – 2.59 mmol/L | 0 – 1.002 g/L | MedlinePlus (US National Library of Medicine) |
| Lipoprotein(a) | 0 – 30 mg/dL | 0 – 0.3 g/L | Journal articles (PubMed Central) |
| Total cholesterol | 0 – 5.18 mmol/L | 0 – 2.003 g/L | MedlinePlus (US National Library of Medicine) |
| Triglycerides | 0 – 1.69 mmol/L | 0 – 1.496 g/L | MedlinePlus (US National Library of Medicine) |
Heart & coagulation
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| BNP | 0 – 100 pg/mL | 0 – 28.87 pmol/L | MedlinePlus (US National Library of Medicine) |
| CK | 25 – 320 U/L (men: 40 – 320; women: 25 – 200) | 0.4167 – 5.333 µkat/L (men: 0.6667 – 5.333; women: 0.4167 – 3.333) | Journal articles (PubMed Central) |
| D-dimer | 0 – 0.5 mg/L FEU | 0 – 500 µg/L FEU | Journal articles (PubMed Central) |
| Fibrin degradation products | 0 – 10 mg/L | MedlinePlus (US National Library of Medicine) | |
| Fibrinogen | 2 – 4 g/L | 200 – 400 mg/dL | MedlinePlus (US National Library of Medicine) |
| Myoglobin | 0 – 72 µg/L (men: 0 – 72; women: 0 – 58) | 0 – 4.222 nmol/L (men: 0 – 4.222; women: 0 – 3.401) | MedlinePlus (US National Library of Medicine) |
| NT-proBNP | 0 – 125 pg/mL | 0 – 14.78 pmol/L | Journal articles (PubMed Central) |
Proteins & inflammation
Iron & vitamins
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Beta-carotene | 0.93 – 5.59 µmol/L | 49.93 – 300.1 µg/dL | MedlinePlus (US National Library of Medicine) |
| Ferritin | 13 – 400 µg/L (men: 30 – 400; women: 13 – 150) | 1.3 – 40 µg/dL (men: 3 – 40; women: 1.3 – 15) | MedlinePlus (US National Library of Medicine) |
| Folate | 6.1 – 38.5 nmol/L | 2.692 – 16.99 ng/mL | MedlinePlus (US National Library of Medicine) |
| Homocysteine | 5 – 15 µmol/L | 0.6757 – 2.027 mg/L | Journal articles (PubMed Central) |
| Iron | 6.6 – 28.3 µmol/L (men: 10.6 – 28.3; women: 6.6 – 25.9) | 36.85 – 158 µg/dL (men: 59.18 – 158; women: 36.85 – 144.6) | MedlinePlus (US National Library of Medicine) |
| Methylmalonic acid | 0.07 – 0.27 µmol/L | 0.0083 – 0.0319 mg/L | MedlinePlus (US National Library of Medicine) |
| Retinol | 1.1 – 4.2 µmol/L | 31.52 – 120.3 µg/dL | MedlinePlus (US National Library of Medicine) |
| TIBC | 26.7 – 90.3 µmol/L (men: 30.6 – 90.3; women: 26.7 – 88) | 149.1 – 504.2 µg/dL (men: 170.9 – 504.2; women: 149.1 – 491.3) | MedlinePlus (US National Library of Medicine) |
| Transferrin | 2.04 – 3.6 g/L | 204 – 360 mg/dL | Journal articles (PubMed Central) |
| Vitamin B12 | 219 – 773 pmol/L | 296.7 – 1047 pg/mL | MedlinePlus (US National Library of Medicine) |
| Vitamin D (25-OH) | 75 – 200 nmol/L | 30.05 – 80.13 ng/mL | MedlinePlus (US National Library of Medicine) |
Thyroid
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Free T3 | 3.2 – 6.8 pmol/L | 2.083 – 4.427 pg/mL | MedlinePlus (US National Library of Medicine) |
| Free T4 | 10.3 – 24.5 pmol/L | 0.8003 – 1.904 ng/dL | MedlinePlus (US National Library of Medicine) |
| Total T3 | 1.2 – 2.4 nmol/L | 78.12 – 156.2 ng/dL | MedlinePlus (US National Library of Medicine) |
| TSH | 0.4 – 4.8 mIU/L | MedlinePlus (US National Library of Medicine) |
Hormones
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| 17-OH progesterone | 0 – 2.85 ng/mL (men: 0 – 2.2; women: 0 – 2.85) | 0 – 8.624 nmol/L (men: 0 – 6.657; women: 0 – 8.624) | University of Washington Laboratory Medicine |
| ACTH | 9 – 52 pg/mL | 1.982 – 11.45 pmol/L | MedlinePlus (US National Library of Medicine) |
| Androstenedione | 0.3 – 2 ng/mL (men: 0.4 – 1.5; women: 0.3 – 2) | 1.047 – 6.983 nmol/L (men: 1.397 – 5.237; women: 1.047 – 6.983) | University of Washington Laboratory Medicine |
| Beta-hCG | 0 – 5 IU/L (men: 0 – 2; women: 0 – 5) | MedlinePlus (US National Library of Medicine) | |
| Calcitonin | 0 – 25 pg/mL (men: 0 – 25; women: 0 – 20) | 0 – 7.312 pmol/L (men: 0 – 7.312; women: 0 – 5.85) | MedlinePlus (US National Library of Medicine) |
| Cortisol | 138 – 690 nmol/L | 5.002 – 25.01 µg/dL | MedlinePlus (US National Library of Medicine) |
| DHEA-S | 1.1 – 10 µmol/L (men: 3 – 10; women: 1.1 – 8.8) | 40.53 – 368.5 µg/dL (men: 110.5 – 368.5; women: 40.53 – 324.2) | MedlinePlus (US National Library of Medicine) |
| Dihydrotestosterone | 140 – 770 pg/mL | 0.482 – 2.651 nmol/L | Journal articles (PubMed Central) |
| Direct renin | 4.2 – 52.2 pg/mL | ltd.aruplab.com | |
| Dopamine (plasma) | 0 – 30 pg/mL | 0 – 0.1958 nmol/L | MedlinePlus (US National Library of Medicine) |
| Epinephrine (plasma) | 0 – 140 pg/mL | 0 – 0.7642 nmol/L | MedlinePlus (US National Library of Medicine) |
| Erythropoietin | 2.6 – 18.5 IU/L | MedlinePlus (US National Library of Medicine) | |
| Estradiol | 37 – 1468 pmol/L (men: 37 – 184; women: 110 – 1468) | 10.08 – 399.9 pg/mL (men: 10.08 – 50.12; women: 29.96 – 399.9) | MedlinePlus (US National Library of Medicine) |
| Free testosterone | 50 – 210 pg/mL (men: 52.5 – 207; women: 0.6 – 10.8) | 5 – 21 ng/dL (men: 5.25 – 20.7; women: 0.06 – 1.08) | University of Washington Laboratory Medicine |
| FSH | 1.5 – 21.5 IU/L (men: 1.5 – 12.4; women: 4.5 – 21.5) | MedlinePlus (US National Library of Medicine) | |
| Gastrin | 0 – 100 pg/mL | MedlinePlus (US National Library of Medicine) | |
| Growth hormone | 0.05 – 8 ng/mL (men: 0.05 – 3; women: 0.05 – 8) | 2.26 – 361.6 pmol/L (men: 2.26 – 135.6; women: 2.26 – 361.6) | MedlinePlus (US National Library of Medicine) |
| IGF-1 | 40 – 300 ng/mL | 5.229 – 39.22 nmol/L | University of Washington Laboratory Medicine |
| IGFBP-3 | 3.3 – 7.6 mg/L | 3300 – 7600 ng/mL | ltd.aruplab.com |
| LH | 1.8 – 25 IU/L (men: 1.8 – 8.6; women: 5 – 25) | MedlinePlus (US National Library of Medicine) | |
| Norepinephrine (plasma) | 70 – 1700 pg/mL | 0.4138 – 10.05 nmol/L | MedlinePlus (US National Library of Medicine) |
| Progesterone | 0 – 20 ng/mL (men: 0 – 1; women: 0 – 20) | 0 – 63.59 nmol/L (men: 0 – 3.18; women: 0 – 63.59) | MedlinePlus (US National Library of Medicine) |
| Prolactin | 0 – 25 ng/mL (men: 0 – 20; women: 0 – 25) | 0 – 530 mIU/L (men: 0 – 424; women: 0 – 530) | MedlinePlus (US National Library of Medicine) |
| PTH | 10 – 65 pg/mL | 1.061 – 6.897 pmol/L | MedlinePlus (US National Library of Medicine) |
| Testosterone | 0.1 – 29 nmol/L (men: 8.6 – 29; women: 0.3 – 1.7) | 2.884 – 836.5 ng/dL (men: 248.1 – 836.5; women: 8.653 – 49.03) | MedlinePlus (US National Library of Medicine) |
| Vasopressin (ADH) | 0 – 5.9 pg/mL | 0 – 5.442 pmol/L | MedlinePlus (US National Library of Medicine) |
Tumor markers
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| AFP | 0.7 – 9.3 ng/mL | 0.5785 – 7.686 IU/mL | MedlinePlus (US National Library of Medicine) |
| CA 125 | 0 – 35 U/mL | MedlinePlus (US National Library of Medicine) | |
| CA 19-9 | 0 – 37 U/mL | Journal articles (PubMed Central) | |
| CEA | 0 – 2.5 ng/mL | MedlinePlus (US National Library of Medicine) | |
| PSA | 0 – 4 ng/mL | MedlinePlus (US National Library of Medicine) |
Immunology & cytokines
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Calprotectin (fecal) | 0 – 50 µg/g (stool) | Journal articles (PubMed Central) | |
| CD4 count | 0.5 – 1.5 10⁹/L | 500 – 1500 /µL | MedlinePlus (US National Library of Medicine) |
| Eosinophil cationic protein | 4 – 54 µg/L | LabCorp | |
| Serum amyloid A | 0 – 11 mg/L | 0 – 1.1 mg/dL | Journal articles (PubMed Central) |
Neurology & psychiatry
| Lab test | Range | Range (other unit) | Source |
|---|---|---|---|
| Serotonin (whole blood) | 0 – 230 ng/mL | 0 – 1305 nmol/L | MedlinePlus (US National Library of Medicine) |