Units of Weight and Measurement

U.S. system to metric

1 inch = 25 mm 1 mm = 0.04 in 1 ft = 0.3 m 1 m = 3.3 ft 1 gr (grain) = 64.8 mg 1 oz = 28.35 g 1 lb = 0.45 kg 1 mg = 0.015 g 1 gr = 0.035 oz 1 kg = 2.2 lb 1 cu in = 16 cu cm 1 cu cm = 0.06 cu in 1 tsp = 5 ml 1 ml = 0.2 tsp 1 T = 15 ml 1 ml = 0.07 T 1 fl oz = 30 ml 1 ml = 0.03 oz 1 c = 0.24 L 1 L = 4.2 c 1 pt = 0.47 L 1 L = 2.1 pt 1 qt = 0.95 L 1 L = 1.1 qt 1 gal = 0.004 cu m 1 cu m = 264 gal 1 cal (c) = 4.184 J 1 J = 0.24 cal

equivalents

1000 mcg = 1 mg 1000 mg = 1 g 1000 g = 1kg 1 kg = 2.2 lb 2.5 cm = 1 in 1000 ml = 1000 c = 1 L 1 joule = 0.24 c 1 c = 4.18 J

common weights and measures

3 tsp = 1 T 2 T = 1 oz 4 T = 1/4 c 8 T = 1/2 c 16 T = 1 c 1 oz = 30 g 1/2 cup = 120 g 1 c = 240 g 1 lb = 454 g 2 c = 1 pt 4 c = 1 qt 4 qt = 1 gal 1 tsp = 5 g 1 T = 15 g 1 oz = 28.35 g 1 g= 1 ml 1tsp = 5ml 1 T = 15 ml 1 oz = 30 ml 1 c = 240 ml 1 pt = 480 ml 1 qt = 960 ml 1 L = 1000 ml

celsius vs. fahrenheit and how to convert

celsius - scale at which the boiling point of water is 100 degrees the freezing point of water is 0 degrees fahrenheit - scale at which the boiling point of water is 212 degrees and the freezing point is 32 degrees to convert from celsius to fahrenheit, multiply by 9, divide by 5, and add 32 to convert fahrenheit to celsius, subtract 32, multiply by 5, and divide by 9

metric volume

cubic centimeter cc - 1cc=1ml mililiter ml - 1000 ml = 1 L centiliter cl - 100 cl = 1 L deciliter dl - 10 dl = 1 L liter dekaliter dkl 1 dkl = 10 L hectoliter hl - 1 hl = 100 L kiloliter kl - 1 kl = 1000L

metric weight

microgram - ug or mcg - 1,000 mcg = 1 mg milligram - mg - 1,000 mg = 1 gram centigram - cg - 100 cg = 1 g decigram - dg - 10 dg = 1 g gram - g or gm - 1g dekagram - dkg - 1 dkg = 10g hectogram - hg - 1 hg = 100g kilogram - kg - 1 kg = 1,000g

metric length

millimeter mm - 1000 mm = 1 m centimeter cm - 100 cm = 1 m decimeter dm - 10 dm = 1 m meter m dekameter dkm - 1 dkm = 10 m hectometer hm - 1 hm = 100 m kilometer km - 1 km = 1000 m

metric system

system of weighing and measuring based on the meter and having all units based on the power of 10

Apothecaries' weight

system used for measuring and weighing drugs and solutions, precious metals, and precious stones. Fractions are used to designate portions of a unit. Small roman numeral are used to designate amounts. example - iss = one and one half grains - gr minims - m drams - dr ounces - oz pounds - lb 12 oz = 1 lb

metric word elements

tera (10^12) - T - monster: one trillion times the size of a unit giga (10^9) - G - one billion times the size of a unit mega (10^6) - M - one million times the size of a unit kilo (10^3) - k - one thousand times the size of a unit hecto (10^2) - h - one hundred times the size of a unit deka (10) - dk - ten times the size of a unit unit is one deci (10^-1) - d - 1/10 of a unit centi (10^-2) - c - 1/100 of a unit milli (10^-3) - m - 1/1000 of a unit micro (10^-6) - u - 1/1,000,000 of a unit nano (10^-9) - n - 1/1,000,000,000 of a unit pico (10^-12) - p - 1/1,000,000,000,000 of a unit

Avoirdupois weight

the system of measuring and weighing used in English-speaking countries for all commodities except drugs, precious stones, and precious metals. drops - gtt teaspoon - tsp tablespoon - T ounces - oz pound - lb 16 oz = 1 lb