noun. a metric unit of length equal to 1000 meters (or 0.621371 miles).
- metric linear unit
noun. the ratio of the distance traveled (in kilometers) to the time spent traveling (in hours).
- kilometres per hour
- kilometers per hour
Example sentences of the word km
1. Noun, plural
The top layer, known as the crust, is the thinnest layer of the Earth with a thickness of 30 km (18.6 miles).
2. Noun, singular or mass
Two of these measures, which both relate to one another, are the decibel gain (dBi) and the distance in kilometers (km) that devices are expected to reach.
3. Verb, base form
a Chankanaab (km 7.5)
According to Andalucia.org, just 40 km separate mountain from sand, making it easy for visitors to experience a little of both during their stay.