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It is not possible to answer this question. A milligram (mg) is a measure of mass while a millilitre is a measure of volume. The two measure different things and it makes no sense to try to convert from one to the other without additinal information. For example, a mg of water would take up approx 13 times the volume of a mg of Mercury. You need to kow the density of the liquid in question.

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12y ago
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15y ago

0.3 grams is equal to 300 milligrams.

1000 milligrams are 1 gram.

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12y ago

Calories cannot be measured in grams. Calories are a measurement of energy that food give you.

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12y ago

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Q: How many grams does 300 mg equal?
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