That depends on the type material you are referring to. Also, these are two different types of measurements. Gallons is a measure of volume but the other is weight or mass. Please edit your question to include more context or details.
One gallon of plain water weighs about 8.35 pounds which converts to 3,787,000 milligrams.
Assuming mg is milligrams (the standard abbreviation) the answer is none. A milligram is a measure of mass. A gallon is a measure of volume. The two measure different things and,according to basic principles of dimensional analysis, conversion from one to the other is not valid. If you are not convinced, consider a gallon of air. How many milligrams? Next consider a gallon of molten lead. How many milligrams?
This is another question asking us to compare units of different quantities. Milligram is a unit of mass (or weight), and gallon is a unit of capacity (volume). There is no answer. You might as well ask how many ounces are in an inch.
One gallon
There are 1000 milligrams in one gram. Therefore, 27000 milligrams is equal to 27000/1000 = 27 grams.
One gallon of plain water weighs about 8.35 pounds which converts to 3,787,000 milligrams.
Assuming mg is milligrams (the standard abbreviation) the answer is none. A milligram is a measure of mass. A gallon is a measure of volume. The two measure different things and,according to basic principles of dimensional analysis, conversion from one to the other is not valid. If you are not convinced, consider a gallon of air. How many milligrams? Next consider a gallon of molten lead. How many milligrams?
31.1 (milligrams per liter) = about 1.817 grains per US gallon.
1820 grams in a British gallon.
First, you need to know the density of the isopropyl alcohol, which is about 0.785 g/cm^3. Next, you need to know how many cm^3 are in a gallon. 1 gallon = 231 in^3 = 231 * (2.54)^3 cm^3 = 3785 cm^3 Also, we need to convert from grams to milligrams 1 gram = 1000 milligrams so... (.785 g/cm^3) * (1000 milligrams/gram) * (3785 cm^3/gallon) * (1 gallon) = 2,970,000 mg
There are 453,592.37 milligrams in one pound.
"Mgs" usually stands for milligrams. Milligrams is a measure of mass. Quart is a measure of volume. The two cannot be converted. Is is like asking "how many pounds are in a gallon?"
4 milligrams is a measurement of
3.26 (milligrams per liter) = 2.72060185 × 10-5 pounds per US gallon.
There are 100,000 milligrams in one hectogram.
The mass is 5000 milligrams.
200 mg per liter = 0.0267 ounces per US gallon.