How do you convert 1000 mg to ml?

3 Answers
Apr 7, 2016

1000 mg of the matter is equal to 1/d ml of matter, where d is density of the matter.

Explanation:

The mg is milligram, a unit of weight and ml is milliliter and hence a unit of volume. The two cannot be compared and converted. However, as density of water is 1, 1000 ml of water weighs 1000 g (not mg) or 1,000,000 mg.

However one can say that if d is density (in grams per cubic centimeter or per milliliter) then 1000 ml of a liquid is equivalent to d xx1,000,000 mg or 1000 mg of matter is equal to 1/d ml of it.

Jul 15, 2018

Depends on density.

Explanation:

i.e. if you are measuring for water, then 1000" mg"=1" mL" as the density of water is 1000g/"mL"

V = Volume
M = Mass
D = Density

V = M/D

Other examples

Lead:
Density = 11.35xx10^3" kg"/m^3
(1000" mg")/(11.35xx10^3 )= 0.088" mL"

Cork:
Density = 0.24xx10^3" kg"/m^3
(1000" mg")/(0.24xx10^3)= 4.167" mL"

Jul 15, 2018

There is no direct conversion from milligrams to milliliters.

Explanation:

Milligrams are a measure of mass and milliliters are a measure of volume, therefore, there is no direct conversion between them.

However, we can relate mass and volume through density, as:

"density"=("mass")/("volume").

We can use density to find the volume of a given mass by manipulating the density formula:

"volume"=("mass")/("density")

We can also use density and volume to determine the mass of a given volume of a substance:

"mass"="volume"xx"density"

So, if we have milligrams and density, we can get milliliters; and if we have milliliters and density, we can get milligrams.

However, these are not direct conversions from milligrams to milliliters.

For example, the density of water, "1 g/mL", tells us that "1 g" of water has a volume of "1 mL". We can convert "1 g" to "1000 mg" so that the density would be "1000 mg/mL". So here we could say that "1000 mg" of water has a volume of "1 mL", but this is not the same as converting directly from milligrams to milliliters.

Examples

What is the mass of "1 mL" of water if the density is "1000g/mL"?

"mass H"_2"O"=1color(red)cancel(color(black)("mL"))xx("1000 mg")/(1color(red)cancel(color(black)("mL")))="1000 mg H"_2"O"

What is the volume of "1000 mg" of water if the density is "1000 g/mL"?

"volume H"_2"O"=1000color(red)cancel(color(black)("mg"))xx(1"mL")/(1000color(red)cancel(color(black)("mg")))="1 mL H"_2"O"

However, we are still not directly converting from milligrams to milliliters. We have to have density as the go-between.