Common or Household System of Measurements
Common or Household System of Measurements
Table F: Household system of measurement for weight and volume
| Household Unit | Abbreviation | Equivalent |
|---|---|---|
| VOLUME | ||
| 1 teaspoonful | tsp | 5 ml |
| 1 tablespoonful | tbsp. | 15 ml |
| 2 tablespoonfuls | tbsp. | 1 fl oz |
| 1 fluid ounce | fl oz | 29.57 ml |
| 1 cup | cup | 8 fl oz |
| 1 pint | pt | 16 fl oz |
| 2 pints | pt | 1 qt |
| 4 quarts | qt | 1 gal |
| WEIGHT | ||
| 1 pound | lb | 16 oz |
|
Solved Problem: Calculate the number of teaspoonful doses in 1 cup of a cough syrup. Approach: Convert the cup into ml. Set up a proportion to calculate the number of teaspoonfuls $$ 1cup = 8\ fl \ oz = 8 \times 29.57 \ ml = 236.56 \ ml $$ $$ {1dose \over 5ml} ={ x \ doses \over 236.56 \ ml} $$ $$ x = 47 \ doses$$ Answer: 47 teaspoonfuls |