Pharmacy Metric Conversions

Name	Abbreviation (grams)	Equivalent (grams)
1 pico-	p	1/1000 ηg
1 nano-	ηg (ng)	1000 pg
1 micro-	μg  (mcg)	1000 ηg (ng)
1 milli-	mg	1000 μg  (mcg)
1 unit	G	1000 mg
1 kilo-	kg	1000 g

Units of Measure

Measurement	Unit	Abbreviation
Weight	Gram	g
Volume	Liter	L
Time	Second	s

Other Conversions

1 teaspoon (tsp) = 5 mL

1 tablespoon (tbsp) = 3 tsp

1 fluid ounce (fl oz) = 2 tbsp

1 cup = 8 fl oz

1 pint (pt) = 2 cups

1 quart (qt) = 2 pt

1 gallon (gal) = 4 qt

1 pound (lb) = 16 oz

1 fluid dram (fl dr) = 1 tsp

3 fl dr = 1 tbsp

1 cc = 1mL

1 grain (gr) = 0.06479891 grams (approx. 0.065 grams)

28.3495231 grams = 1 oz (approx. 28.35 g = 1 oz)

1 kilogram = 2.20462262 pounds (approx. 2.2 lbs = 1 kg)

Concentration

Unit	Expression	Example
% weight in weight	% w/w	1 g in 100 g
% volume in volume	% v/v	1 mL in 100 mL
% weight in volume	% w/v	1 g in 100 mL
% volume in weight	% v/w	1 mL in 100 g