* 1 kilometer (km) = 1000 meters (m)

* 1 meter (m) = 39.37 inches (in)

Calculation:

1. Convert km to meters: 1 km * 1000 m/km = 1000 m

2. Convert meters to inches: 1000 m * 39.37 in/m = 39,370 inches

Therefore, there are 39,370 inches in one kilometer.