How many kg in liter?

Answer 1

A litre is a unit of volume and a kilogram is a unit of mass (weight). You can not directly equate different units of measurement.

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The Units are not compatible, It depends upon the substance. The weight of a liter of a substance varies with the substance and, to a small extent, its temperature. A liter of Mercury weighs much more than a liter of water.

A typical answer is: 1 liter of water "weighs" 1 kilogram, but don't forget it's water at 3.98 degrees Celsius or 39.164 degrees Fahrenheit.

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There are two problems with this common answer, which is why I am not just changing the answer.

1. The kilogram is not a unit of weight, it is a unit of mass. So it is incorrect to say that a liter of water weighs one kilogram. In fact one liter of pure water has a mass of one kilogram.

2. Technically this conversion is not exact since the density of water changes depending on it's state. Since a liter is a unit of volume, then, since water expands when frozen, a liter of solid ice has less mass than a liter of liquid water. Water is maximally dense at near 4 degrees Celsius.
These are two different variables Kilograms is unit of mass, and liter is a unit of volume. To relate both you would need to know the density of the material. (Density = mass in kg/ volume in Liters)

However, for water at 4°C, one kilogram is the weight of 1 liter.

Answer 2

Kilogram is a measure of mass; the litre are a measure of volume.

1 Litre of water weighs approximately 1 Kg, but other substances weigh more or less.

1 Litre of sand weighs more, 1 Litre of air a lot less.

A litre is metric, you do not have to say 'metric litre'.

Answer 3

The conversion of kilograms to liters depends on the density of the substance. Since density varies, there is no fixed conversion between kilograms and liters. Additional information such as the substance in question would be needed to provide a more specific conversion.

Answer 4

A litre of water weighs one kg. Different liquids may be more or less dense and a litre of them may weigh more or less.

Answer 5

Depends on the stuff your are using.

Answer 6

1.000028 kg

Answer 7

100