These are conversions you should know as a pharmacist.

Conversions

Weight (Solid)

1 kilogram (kg) = 2.2 pounds (lbs)

1 ounce (oz) = 28.4 grams (g)

1 pound (lbs)= 454 grams (g)

1 grain (gr) = 65 mg (approximate)= 64.8 mg (actual)

Volume (Liquid)

1 teaspoon (tsp/t) = 5 mL

1 tablespoon (tbsp/T) = 15 mL

1 fluid ounce (fl oz) = 30 mL (approximate)= 29.57 mL (actual)

1 cup = 8 oz = 240 mL (approximate) = 236.56 mL (actual)

1 pint(pt) = 16 oz= 480 mL (approximate) = 473 mL (actual)

1 quart(qt) = 2 pints = 32 oz= 960 mL (approximate) = 946 mL (actual)

1 gallon = 4 quarts = 128 oz = 3840 mL (approximate) = 3785 mL (actual)

Height

1 inch (in) = 2.54 centimeters (cm)

1 meter (m) = 100 centimeters (cm)

Chemistry

Milliequivalents (mEq) and Millimoles (mmol)

K+, Na+ and other monovalent ions: 1 mEq = 1 mmol

Ca2+ and other divalent ions: 1 mEq = 0.5 mmol

Notes

Drugs can be expressed in various units. Be familiar with them.

Weight: grams(g), milligrams(mg), micrograms(mcg), nanograms(ng)

Liquid: Liters(L), milliliters(mL), deciliters(dL)

As percentage strengths: g in 100 mL, g in 100 g, mL in 100 mL

e.g. 25% albumin (=12.5 g/50 mL), 1 % hydrocortisone (=10 mg/mL)

As drug concentrations: amount of drug in a given amount of volume (mcg/mL or mg/L)

e.g.  phenytoin mg/L, creatinine 1.5 mg/dL

As milliequivalent concentrations: milliequivalents (mEq) per liter (mEq/L)

e.g. Potassium 3.6 mEq/L