What is the conversion of a litre to kilogram?

Question

Agreed that they are two different systems of units, but I need to know what should be used as a constant or multiplier to convert them. I need that formula. If specific density is involved, then can anyone suggest where on Net can I find the specific density of fluids?

Answer 1

hmm.. if i'm not wrong it's tha same.. 1 kg is the same as 1litre of water.. i think..

Answer 2

Density = Mass / Volume

Rearranging,

Volume = Mass / Density

Volume = 1/Density x Mass


You can then make use of the Relative density but if you are rigorous, some units would still be there in order for the equation to be consistent.

Relative density (also known as specific gravity) is a measure of the density of a material. It is dimensionless, equal to the density of the material divided by some reference density (most often the density of water, but sometimes the air when comparing to gases):

Answer 3

G'day,

Thanks for the question.

The kilogram was originally defined as the mass of one litre of pure water at standard atmospheric pressure and at the temperature at which water has its maximum density (3.98 degrees Celsius). This definition was hard to realize accurately, partially because the density of water depends slightly on the pressure, and pressure units include mass as a factor, introducing a circular dependency in the definition.

To avoid these problems, the kilogram was redefined as precisely the mass of a particular standard mass created to approximate the original definition. Since 1889, the SI system defines the unit to be equal to the mass of the international prototype of the kilogram, which is made from an alloy of platinum and iridium of 39 mm height and diameter, and is kept at the Bureau International des Poids et Mesures (International Bureau of Weights and Measures). Official copies of the prototype kilogram are made available as national prototypes, which are compared to the Paris prototype ("Le Grand Kilo") roughly every 10 years. The international prototype kilogram was made in the 1880s

It was so difficult to get a consistent conversion using water that they abandoned it. It would be impossible for other substances such as oil or milk.

I have attached some sources for further references.

Regards

Answer 4

This depends completely on the substance in question. This is where the specific density comes into play:

d = m/v
m = dv
v = m/d

So if you have the mass (in kilograms), just divide by the specific density (kilograms per 1 litre) to get the volume (litres). Multiply the volume by the specific density to get the mass.

Hope this helps.

Answer 5

You can't convert liters to kilograms. They are not different systems of units there are incompatible units: liter = volume, kilogram = mass. It sounds like you want to compute the mass of a liter of some fluid. If it's water, it's easy. 1 liter of water weighs one kilogram.

I found a web site at NIST where you can get this data via an interactive interface. See link under "Sources".

Answer 6

Density, or specific gravity, is indeed involved, and it is that by which you multiply volume to get mass. For water, or course, the density is 1.00, so volume in liters and mass in kilograms are numerically equal. My usual reference for data of this sort is:

Answer 7

You can't convert from a unit of volume to a unit of mass. If this helps, 1 liter of water is equal to 1 kilogram of water.

Answer 8

one's volume the other is mass. there is no conversion. you might ask though, how many kilo's does a litre of water weigh? or how much voume will a kg of gold fill?

Answer 9

mass=vol*density
given volume in litres
take density in kg/litre
we get mass
multiply with gravity of earth we get weight in kgs(w=mg)

Answer 10

1 litre is always taken equal to 1 kilo gram.

Answer 11

find the density try keyword properties/fluids