Approximate Practical Equivalents

Approximate Practical Equivalents

APPROXIMATE PRACTICAL EQUIVALENTS
The listing of approximate practical equivalents is included to aid the practitioner in calculating and converting dosages among the various systems.
WEIGHT EQUIVALENTS
1 grain (gr)	=	65 milligrams (mg)			1 ounce apothecary (℥)	=	31.1 grams (g)
1 milligram (mg)	=	0.015 grains (gr)			1 pound  avoirdupois (lb)	=	454 grams (g)
1 gram (g)	=	15.432 grains (gr)			1 pound  avoirdupois (lb)	=	0.45 kilograms (kg)
1 gram (g)	=	0.035 ounces (oz)			1 kilogram (kg)	=	2.2 pounds  avoirdupois (lb)
1 ounce  avoirdupois (oz)	=	28.35 grams (g)
VOLUME EQUIVALENTS
1 milliliter (mL)	=	16.23 minims (♍)			1 pint (pt or ⃝ or Oct)	=	473 milliliter (mL)
1 cubic centimeter*  (cc)	=	1.0 milliliter (mL)			1 quart (qt)	=	946 milliliter (mL)
1 fluidram (fl ʒ)	=	3.7 milliliter (mL)			1 liter (L)	=	33.8 fluid ounces (fl ℥)
1 teaspoonful (tsp)	=	5 milliliter (mL)			1 gallon (gal or C or cong)	=	3785 milliliter (mL)
1 tablespoonful (tbsp)	=	15 milliliter (mL)			1 milliliter (mL)	=	20 drops
1 fluid ounce (fl ℥)	=	29.57 milliliter (mL)
WEIGHT TO VOLUME EQUIVALENTS
1 milligram per  deciliter (mg/dL)	=	10 micrograms per milliliter (μ/mL)			1% solution	=	10 milligram per milliliter (mg/mL)
1 milligram per  deciliter (mg/dL)	=	1 milligram percent (mg %)			1 part per million (ppm)	=	1 milligram per liter (mg/L)
LINEAR EQUIVALENTS
1 millimeter (mm)	=	0.04 inches (in)			1 meter (m)	=	39.37 inches (in)
1 inch (in)	=	25.4 millimeters (mm)			1 inch (in)	=	0.025 meters (m)
1 inch (in)	=	2.54 centimeters (cm)
*Cubic centimeter and milliliter are equivalent. (Rev. 10/2023)