Kilometers

The bay extends 120km along the coastline and is 1,553 square kilometers in size.

That was an astounding 11 billion miles (17 billion kilometers) away from Earth.

Tokyo covers an area of 2,188 square kilometers (845 square miles).

They can run with a speed of about 65 kilometers per hour/40 miles per hour.

Covering almost 2,000,000 square kilometers (770,000 sq mi), Mexico is the 13th-largest country in the world.

It is nearly 7,000 kilometers (km) wide;

The largest fridge in the world is 27 kilometers long.

An ostrich can run up to 70 kilometers per hour!