Asked in Health, Drug Tests
How many grains in fifteen mg?
About one quarter of a grain. If you type "grains to milligrams" or "milligrams to grains" with a number in the search box, google will convert it for you (as well as hundreds of other units). One grain = 64.8 milligrams 15 milligrams = 0.231 grains -Zmiller6108 ...
Asked in Metric System
How do you convert 7.5 grains to milligrams?
A grain is an old-fashioned, medieval unit of weight equal to the weight of a grain of wheat or barley, it isn't used in the modern world. One grain was roughly equivalent to 64.8 milligrams, so 7.5 would be 7.4 time 64.8, which is 486 milligrams, or 0.486 grams. ...