Conversions

Basic Equivalencies and Conversions

• Common Volume and Dosage Equivalences

  • 1 liter (L) = 1000 milliliters (mL)
  • 1 liter (L) = 20 milli-equivalents (mEq)
  • 4 liters (L) = 1 gallon
  • 15 mL = 1 tablespoon (tbs)
  • 1 tablespoon (1 tbs) = 5 mL
  • 1 liter (L) = 60 or 64.8 teaspoons (tsp)
  • 1 lozenge (loz) = 30 mL

• Weight and Mass Relationships

  • 115 grams (g) = 2.21 pounds (lb)
  • 1 lb = 454 grams (g)
  • 1 gram (g) = 1000 milligrams (mg)
  • 1 milligram (mg) = 1000 micrograms (mcg)
  • 1 gram (g) = 1,000,000 micrograms (mcg)
  • 1 grain (gr) = 65 milligrams (mg)

• Concentrations

  • For a 10% solution:
  • Concentration = 10 g / 100 mL
  • This equals 100 mg/mL
  • For a 20% solution:
  • Concentration = 20 g / 100 mL
  • This equals 200 mg/mL
  • For a 5% solution:
  • Concentration = 5 g / 100 mL
  • This equals 50 mg/mL

Summary of Key Values

• Volume in milliliters

  • 1 liter = 1000 mL
  • 60 mL = Standard dosing reference

• Concentrations of solutions

  • 10% = 10 g of solute per 100 mL of solution
  • 20% = 20 g of solute per 100 mL of solution
  • 5% = 5 g of solute per 100 mL of solution