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Milligrams and milliliters are two different measures, milligrams measure mass and milliliters measure volume and you can not convert one to the other.

Q: How many ml are in 300 mg?

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This is not a valid conversion; milligrams (mg) and grams (g) are measures of weight or mass while milliliters (mL or ml) measure volume.

This is not a valid conversion. Milliliters (mL or ml) and liters (L) are measures of volume. Grams (g), kilograms (kg) and milligrams (mg) are measures of weight or mass.

15 ml

2.5 ml

This cannot be sensibly answered. A milliliter (mL or ml) is a measure of volume, mg is a measure of weight or mass.

Related questions

cc = ml if you assume that density is 1 g / ml, you assume a gram is a millilitre then 300 mg / ml = 300,000 mg per kilogram

This is not a valid conversion; milligrams (mg) and grams (g) are measures of weight or mass while milliliters (mL or ml) measure volume.

300 g = 300000 mg

300 grams of water is 300 ml.

This is not a valid conversion. Milliliters (mL or ml) and liters (L) are measures of volume. Grams (g), kilograms (kg) and milligrams (mg) are measures of weight or mass.

This is not a valid comparison; milligrams (mg) is a measure of weight or mass while milliliters (mL or ml) measure volume.

Does not convert; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.

Milligrams and milliliters measure different things (milligrams measure mass and milliliters measure volume), so there is no universal conversion factor. For example, 300 mg of air takes up about 250 ml, whereas 300 mg of water takes up only 0.3 ml. To get an answer you need to specify what substance you are measuring, or, if the substance is in solution, you need to specify the concentration of the solution.

Accordingly, 1 ml = 1/7.5 mg = 0.133 mg

This is not a valid conversion; milligrams (mg) and grams (g) are measures of weight or mass and mL (milliliters) is a measure of volume.

how many cups in 300 mg liquid

Answer: 300 mg = 0.000661 lbs.