| Rancho Cucamonga to Jicin | 5,927.40 mi (9,539.23 km) |
| Rancho Cucamonga to Jihlava | 5,990.79 mi (9,641.24 km) |
| Rancho Cucamonga to Jindrichuv Hradec | 5,988.74 mi (9,637.95 km) |
| Rancho Cucamonga to Jirkov | 5,872.26 mi (9,450.50 km) |
| Rancho Cucamonga to Kadan | 5,874.05 mi (9,453.37 km) |
| Rancho Cucamonga to Karlovy Vary | 5,870.75 mi (9,448.06 km) |
| Rancho Cucamonga to Karvina | 6,043.39 mi (9,725.90 km) |
| Rancho Cucamonga to Kladno | 5,909.10 mi (9,509.78 km) |
| Rancho Cucamonga to Klasterec nad Ohri | 5,870.82 mi (9,448.17 km) |
| Rancho Cucamonga to Klatovy | 5,927.42 mi (9,539.26 km) |
| Rancho Cucamonga to Kolin | 5,945.74 mi (9,568.74 km) |
| Rancho Cucamonga to Koprivnice | 6,047.52 mi (9,732.55 km) |
| Rancho Cucamonga to Kralupy nad Vltavou | 5,909.96 mi (9,511.16 km) |
| Rancho Cucamonga to Kraluv Dvur | 5,918.14 mi (9,524.33 km) |
| Rancho Cucamonga to Krnov | 6,008.36 mi (9,669.52 km) |
