A kilometer is a unit of length, not of mass. So, it is impossible for something to "weigh a kilometer".
One kilometer is 1000 meters, so a kilometer is bigger.
One meter is 1/1000 of a kilometer.
No, it's the other way around. A meter is one-thousandth of a kilometer, and kilometer is a thousand meters.
A kilometer is much bigger. It takes 1,093.6 yards to equal one kilometer.
A kilometer is a unit of length, not of mass. So, it is impossible for something to "weigh a kilometer".
Nothing weighs 1 km. Kilometer is a measure of length you can't weigh that.
The answer depends on the material whose weigh you require.
one kilometer.
Kilometer
a kilometer
kilometer
One kilometer is 1000 meters, so a kilometer is bigger.
One kilometer is 1,000 meters.
kilometer
a meter a thousand times shorter than a kilometer or, there are 1000 metres in a kilometer
one kilometer = 1000 meters