We have included some common conversions for reference and to speed up your task.
Conversion Tables
Temperature
| SI unit | Conversion factor | Conventional unit |
| °C | (x 9/5) + 32 | °F |
Haematology
| SI unit | Conversion factor | Conventional unit | |
| Red blood cell count | 1012/l | 1 | 106/µl |
| Haemoglobin | g/l | 0.1 | g/dl |
| MCH | pg/cell | 1 | pg/cell |
| MCHC | g/l | 0.1 | g/dl |
| MCV | fl | 1 | µm3 |
| Platelet count | 109/l | 1 | 103/ µl |
| White blood cell count | 109/l | 1 | 103/ µl |
Biochemistry
| SI unit | Conversion factor | Conventional unit | |
| Alanine aminotransferase | IU/l | 1 | IU/l |
| Albumin | g/l | 0.1 | g/dl |
| Alkaline phosphatase | IU/l | 1 | IU/l |
| Aspartate aminotransferase | IU/l | 1 | IU/l |
| Bilirubin | µmol/l | 0.0584 | mg/dl |
| BUN | mmol/l | 2.8 | mg/dl |
| Calcium | mmol/l | 4 | mg/dl |
| Carbon dioxide (total) | mmol/l | 1 | mEq/l |
| Cholesterol | mmol/l | 38.61 | mg/dl |
| Chloride | mmol/l | 1 | mEq/l |
| Cortisol | nmol/l | 0.362 | ng/ml |
| Creatine kinase | IU/l | 1 | IU/l |
| Creatinine | µmol/l | 0.0113 | mg/dl |
| Glucose | mmol/l | 18.02 | mg/dl |
| Insulin | pmol/l | 0.1394 | µIU/ml |
| Iron | µmol/l | 5.587 | µg/dl |
| Magnesium | mmol/l | 2 | mEq/l |
| Phosphorous | mmol/l | 3.1 | mg/dl |
| Potassium | mmol/l | 1 | mEq/l |
| Sodium | mmol/l | 1 | mEq/l |
| Total protein | g/l | 0.1 | g/dl |
| Thyroxine (T4) (free) | pmol/l | 0.0775 | ng/dl |
| Thyroxine (T4) (total) | pmol/l | 0.0775 | µg/dl |
| Tri-iodothyronine (T3) | nmol/l | 65.1 | ng/dl |
| Triglycerides | mmol/l | 88.5 | mg/dl |
Hypodermic needles
| Metric | Non-metric | |
| Needle gauge | 0.8mm | 21 G |
| 0.6mm | 23 G | |
| 0.5mm | 25 G | |
| 0.4mm | 27 G | |
| Needle length | 12mm | ½ inch |
| 16mm | ⅝ inch | |
| 25mm | 1 inch | |
| 30mm | 1.25 inch | |
| 40mm | 1.5 inch |
Suture material sizes
| Metric (Ph. Eur.) | USP |
| 0.4 | 8/0 |
| 0.5 | 7/0 |
| 0.7 | 6/0 |
| 1 | 5/0 |
| 1.5 | 4/0 |
| 2 | 3/0 |
| 3 | 2/0 |
| 3.5 | 0 |
| 4 | 1 |
| 5 | 2 |
| 6 | 3 |