Measure for Measure

Measure for Measure

Here are some approximate liquid and solid equivalents among the household, apothecaries', avoirdupois, and metric systems. Use your facility's protocol for converting measurements from one system to another.

*Liquids*
Household	Apothecaries'	Metric
1 drop (gtt)	1 minim (m)	0.06 milliliter (mL)
15 to 16 gtt	15 to 16 m	1 mL
1 teaspoon (tsp)	1 fluidram	5 mL
1 tablespoon (tbs)	½ fluid ounce (fl oz)	15 mL
2 tbs	1 fl oz	30 mL
1 cup	8 fl oz	240 mL
1 pint (pt)	16 fl oz	480 mL
1 quart (qt)	32 fl oz	960 mL
1 gallon (gal)	128 fl oz	3,840 mL
*Solids*
Avoirdupois	Apothecaries'	Metric
1 grain (gr)	gr i	0.06 gram (g)
1 gr	gr i	60 milligrams (mg)
15.4 gr	15 gr	1 g
1 oz	480 grains	28.35 g
1 pound (lb)	1.33 lb	454 g
2.2 lb	2.7 lb	1 kilogram (kg)

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