A liter is a unit of volume equal to 1 cubic decimeter dm3, 1,000 cubic centimeters cm3, and 1/1,000 cubic meter. The unit has two official symbols: The Latin letter L in lower and upper case (l and L). If the lower case L is used it is sometimes written as a cursive ℓ, although this usage has no official approval by any international bureau.

The word litre is derived from an older French unit, the litron, whose name came from Greek via Latin. The original French metric system used the litre as a base unit, and it has been used in several subsequent versions of the metric system and is accepted for use with the SI, although not an official SI unit - the SI unit of volume is the cubic metre m3. The spelling of the word used by the International Bureau of Weights and Measures is "litre" and this is also the usual one in most English-speaking countries, but in American English the spelling is "liter”. One litre of water has a mass of almost exactly one kilogram.

A kilometre is a unit of length in the metric system, equal to one thousand metres and is therefore exactly equal to the distance travelled by light in free space in 1⁄299 792.458 of a second. It is the most conventionally used measurement unit for expressing distances between geographical places in most of the world; notable exceptions are the United States and the United Kingdom where the statute mile is used.

I think what you meant to ask was how many litres are there in a kilolitre. The answer to this is simple 1000 litres, just as there is 1000 millilitres in a litre. If you meant to ask how many metres there are in a kilometre then the answer is 1000 metres. Though if you did mean to ask the question the way in which you did, then the answer is simply there are no litres in a kilometre as both a completely different values of measurement.

The word litre is derived from an older French unit, the litron, whose name came from Greek via Latin. The original French metric system used the litre as a base unit, and it has been used in several subsequent versions of the metric system and is accepted for use with the SI, although not an official SI unit - the SI unit of volume is the cubic metre m3. The spelling of the word used by the International Bureau of Weights and Measures is "litre" and this is also the usual one in most English-speaking countries, but in American English the spelling is "liter”. One litre of water has a mass of almost exactly one kilogram.

A kilometre is a unit of length in the metric system, equal to one thousand metres and is therefore exactly equal to the distance travelled by light in free space in 1⁄299 792.458 of a second. It is the most conventionally used measurement unit for expressing distances between geographical places in most of the world; notable exceptions are the United States and the United Kingdom where the statute mile is used.

I think what you meant to ask was how many litres are there in a kilolitre. The answer to this is simple 1000 litres, just as there is 1000 millilitres in a litre. If you meant to ask how many metres there are in a kilometre then the answer is 1000 metres. Though if you did mean to ask the question the way in which you did, then the answer is simply there are no litres in a kilometre as both a completely different values of measurement.