Dosage Calculation Conversions

Dosage calculation conversions play an important role in the process of administering medications to patients, ensuring accurate and safe drug administration. Healthcare professionals, including nurses and pharmacists, regularly encounter situations where they need to convert drug dosages from one unit of measurement to another, such as kilograms to pounds, milliliters to teaspoons, or milligrams to micrograms. This process is vital for preventing medication errors and guaranteeing that patients receive the right amount of medication for their specific needs.

Commonly used Dosage Calculation Conversions:

• 1 kilogram = 1,000 grams = 2.2 pounds
• 1 pound = 0.45kg = 16 ounces
• 1 gram = 1,000 mg = 15-16 grains
• 1 mg = 1,000 mcg
• 1 grain = 60 mg
• 1 liter = 1,000 mL = 1 quart = 2 pints = 4 cups = 32 ounces
• 1 teaspoon = 5 mL = 60 drops
• 1 tablespoon = 3 teaspoons = 15 mL
• 1 ounce = 2 tablespoons = 30 mL
• 1 cup = 1/2 pint=8 ounces = 240-250 mL
• 1 pint = 2 cups = 16 ounces = 480 mL
• 1 quart = 2 pints = 4 cups = 32 ounces = 1 liter = 1,000 mL
• 1 gallon = 4 quarts = 8 pints = 16 cups = 128 ounces = 3,785 mL

General Calculation Tips:

• Check that your answer makes sense clinically.
• Double-check your work.
• Have a colleague or pharmacist check your work.
• Know general therapeutic drug dose ranges for common medications.

Also Check: Temperature Conversion here.