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Gallons can't be converted to milligrams. Gallons measure volume, while milligrams measure mass.
1 gram = 1000 milligrams so 900 grams = 900*1000 = 900,000 mg. Simple!
There are 1000 micrograms in each milligram. You need to divide by 1000 here. 900/1000 is 0.9 milligrams.
Only if you have pure water in mind, then: 0.9 milliliters of pure water weigh 0.9 grams or 900 milligrams.
900,000,000 milligrams = 900,000 grams = 900 kilograms = 0.9 tonnes
0.9 mg
About 14 gallons.
No. Milligrams and kilograms are measures of weight or mass. Gallons is a measure of volume.
There are 900 micrograms in 0.9 milligrams. (1 milligram = 1000 micrograms)
4 900 000 milligrams in 4900 grams (1000 milligram per gram).
13 gallons
14400 cups