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

* Divide by 1000: To convert from meters to kilometers, divide the distance in meters by 1000.

* Calculation: (1.5 x 10^11 m) / (1000 m/km) = 1.5 x 10^8 km

Therefore, the distance between the Earth and Sun is approximately 1.5 x 10^8 kilometers.