Units of Measure
Volume
Weight and Mass

# How many kilograms are in a liter?

101102103 ###### 2016-08-09 12:19:26

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.

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## Related Questions At 15 degrees Celsius, there are about 0.82 kilograms per liter of kerosene. Conversely, there are about 1.22 liters of kerosene per kilogram. Question is unanswerable. Read it again, slowly. You mention 3 types of measurements: (1) kilograms (2) Liter (3) Pounds. You can only convert from one type to one other type. Alternate Question: How many Kilograms does 1 liter of water weigh? That depends on what the liter has in it. -- If the liter of space has air in it, there's roughly 0.0012 kilogram of mass there, but the exact number depends on the temperature and pressure. -- If the liter of space has water in it, there's roughly 1 kilogram of mass there. -- If the liter of space has gold, stones, or lead in it, there are several kilograms of mass there. -- If the liter of space is empty, there's no mass there at all. Units of mass (kilograms) are incompatible with units of volume (litres). The density of mercury is 13595 kilograms per cubic meter or 13.595 kilograms per cubic decimeter or 13.595 kilograms per liter. 1 liter of mercury weighs 13.595 kilograms. The answer will vary a lot, depending on the substance: different substances have different densities, i.e., different amounts of kilograms per liter. A liter of water weighs almost exactly one kilogram. There are 1000 milliliters in one liter. 827 milliliters divided by 1000 equals 0.827 liters. So, since a liter of water weighs one kilogram, 0.827 liters would weigh 0.827 kilograms. 827 milliliters of water weighs 0.827 kilograms.

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