This question cannot be answered sensibly. A quart is a measure of volume, with dimensions [L3]. A kilometre is a measure of distance, with dimensions [L]. Basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.
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A quart is a unit of capacity. A kilometre is a unit of distance. The two units are therefore incompatible.
There are no kilograms in a kilometer. There are a thousand grams in a kilogram and a thousand meters in a kilometer!
1 kilometer=100,000 centimeters
1,000 meters = 1 kilometer
There are are 1,000,000 MILLIMETERS in a kilometer.