# Weights and Measurements

### METRIC SYSTEM

PREFIX SYMBOL MULTIPLE PREFIX SYMBOL MULTIPLE
mega- M x 1,000,000 deci- d x 1/10
kilo- k x 1,000 centi- c x 1/100
hecto h x 100 milli- m x 1/1,000
deka- da x 10 micro- u x 1/1,000,000

 BASIC UNITS OF MEASUREMENTS METRIC UNITS OF LENGTH Linear……meter 1 LIGHT YEAR = 9.46 X 10 KILOMETERS Volume……liter 1 KILOMETER (km) = 1,000 METERS Weight……gram 1 METER (m) = 100 CENTIMETERS International units..IU or U based on #/ml 1 METER (m) = 1,000 MILLIMETERS Whole Blood..1 unit = 500 mls 1 MICRON    = 1,000 MILLIMICRONS Equivalents…mEq (Elect. charge) 1 MILLIMICRON = 10 ANGSTROMS (A)

 METRIC UNITS OF WEIGHT METRIC UNITS OF VOLUME 1 metric ton = 1,000 kilograms 1 megaliter  = 1,000 kiloliters 1 kilogram (kg) = 1,000 grams 1 kiloliter  = 1,000 liter 1 gram (gm) = 1,000 milligrams 1 liter (l.) = 1,000 milliliters 1 milligram (mg)= 1,000 micrograms 1 milliliter = 1,000 microliters

 GENERAL RELATIONSHIP BETWEEN UNITS 1 gram of water = 1 milliliter = 1 cubic centimeter at 25C

 CONVERSION TABLE FOR COMMON U.S. AND METRIC MEASUREMENTS 1 inch = 2.54 centimeters 1 liquid ounce = 29.58 (30) milliliters = 1 Fluid oz 1 meter = 1.0936 yards 1 kilogram = 2.204 pounds 1 liter = 1.0567 quarts 1 cubic meter = 1.3080 cubic yards 1 hectare = 2.4711 acres 10,000 meters = 1 hectare 1.609 kilometer = 1 mile 1 lb. = 454 gram 1 grain (gr) = 65 mg  (60 mg for Ntg and narcotics) 1 tablespoon = 15 ml = 1/2 fluid ounce 1 teaspoon = 5 ml 1 pint = 473 ml 1 quart = 946 ml

 TEMPERATURE PRESSURE C = 5/9 (F – 32) 1 mm Hg = 1 Torr. F = C 9/5 + 32 1 Atmosphere = 760 mm Hg. 98.6F = 37C = 310K 1 Atmosphere = 14.696 lbs/sq in 32F = 0C = 273K 1 mm Hg = 13.6 mm H20 = 1.36 cm H20