Pharmaceutical Tools
Pharmaceutical Unit Converter
Convert mass, volume, body weight, temperature, and concentration units instantly. Bidirectional — change either value and the other updates live.
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How to Use This Converter
1
Select the unit category tab (Mass, Volume, Body Weight, Temperature, or Concentration).
2
Choose your "From" and "To" units from the dropdowns in each group.
3
Type a value in either field — the other updates instantly. The conversion factor used is shown below the inputs.
Example conversions
0.5 mg → 500 mcg | 70 kg → 154.32 lbs | 37°C → 98.6°F | 5 mL → 1 tsp | 1 mg/mL → 100 mg/dL
Frequently Asked Questions
Multiply milligrams by 1,000 to get micrograms. For example, 0.5 mg = 500 mcg. This is one of the most common conversions in pharmacy — drugs like fentanyl and levothyroxine are dosed in mcg to reduce the risk of decimal errors.
1 teaspoon = 4.929 mL (approximately 5 mL). Always use a calibrated oral syringe rather than a household teaspoon when measuring medication, as household spoon volumes vary significantly.
Multiply kilograms by 2.20462. Example: 70 kg × 2.20462 = 154.3 lbs. To convert lbs back to kg, divide by 2.20462. Drug dosing in mg/kg always requires weight in kilograms.
°F = (°C × 9/5) + 32. Reverse: °C = (°F − 32) × 5/9. Key reference points: 0°C = 32°F (freezing), 37°C = 98.6°F (normal body temp), 100°C = 212°F (boiling).
For highly potent drugs, using micrograms (mcg) prevents dosing errors from misplaced decimal points. Since 1 mg = 1,000 mcg, expressing 0.025 mg as 25 mcg removes the decimal and reduces the risk of a 10× or 100× overdose. Digoxin, fentanyl, and levothyroxine are routinely expressed in mcg.