Depends on what you are measuring. Short distances could use a meter stick or the flip-side of a tape measure. For longer distances you could use a laser set to metric or hop in a car measure the distance in miles and then convert it.
Kilometers
kilometers
Usually, you would use kilometers.
Kilometers
You would use kilometers (km).
I would use kilometers.
Yes on vast scale
meters
Americans use miles as the traditional measure of distance.
You use anything with markings of kilometers,meters,millimeters or centimeters.
you would use kilometers.
Meters