measurements & equivalents
1 kilogram
1,000 grams (g)
1 milligram
1,000 micrograms (mcg)
1 gram
1,000 milligrams (mg)
1liter (L)
1,000 milliliters (ml)
1 meter
100 centimeter (cm) 1,000 millimeters (mm)
metric system
* portions increased ( multiplied) or decreased (divided) by multiples of 10 (10-100-1,000) *conversions achieved by moving decimal point to the right for multiplication or to the left for division,
converting within the same system
*determine the equivalent values *write down what you know in a fraction, followed by what you desire and solve for example: how many mL in 2.5 ounces? 75ml 1. look up equivalent of 30ml=1 oz. 2. write down what you know: 30 ml/1 ounce 3. you want XmL/2.5 ounces 4. cross multiply: 30 ml/1 oz X xmL/2.5 oz =30ml/2.5 oz = 75 mL
metric apothecary & household equivalents
gtt-drop 4ml-dram 15 ml - 4 drams 1 tbsp. 30 ml - 8 drams - 2 tbsp. = 1 ounce 1 kg (1,000 g) = 2.2 lb. 1 mg = 1,000 mcg 2.5 cm = 1 inch
converting smaller to larger unit
move decimal point to the left 1/1L - 10/10dl- 100/100cL - 1,000/1,000 mL
converting larger unit to smaller unit
move decimal point to the right multiple by 10 * 1/1 liter 10/10 deciliters 100/100 centiliters 1000/ 1,000 ml
ratio and porportion
select equivalent value and then set up proportion using colon or fraction format example: Give 1.5 ounces of an elixir that is available in ml 1.change ounces to ml, equivalent value :30 ml= 1 ounce 2. write what you know: 30ml:1 oz = Xml:1.5 oz 3. solve for X: x=30 X 1.5 =45 ml
household quanties /metric equivalents
unit = volume = abbreviation = equivalent drop = gtt teaspoon=60 gtts=tsp=5ml tablespoon=3tsp=tbsp.=15ml ounce=2tbsp=oz=30 ml tea cup=6 ounces=c=180 ml measuring cup=8 ounces=C=240ml pint= 16 ounces = pt (2C) = 500 ml quart = 2 pints = qt. =(4C) 1,000ml gallon = 4 quarts = gal