| Rancho Cucamonga to Karditsa | 6,737.30 mi (10,842.63 km) |
| Rancho Cucamonga to Kastoria | 6,651.92 mi (10,705.23 km) |
| Rancho Cucamonga to Katerini | 6,701.60 mi (10,785.18 km) |
| Rancho Cucamonga to Keratsini | 6,868.06 mi (11,053.07 km) |
| Rancho Cucamonga to Kerkyra | 6,663.68 mi (10,724.16 km) |
| Rancho Cucamonga to Kiato | 6,840.45 mi (11,008.63 km) |
| Rancho Cucamonga to Kifisia | 6,866.91 mi (11,051.23 km) |
| Rancho Cucamonga to Kilkis | 6,669.96 mi (10,734.26 km) |
| Rancho Cucamonga to Komotini | 6,731.73 mi (10,833.67 km) |
| Rancho Cucamonga to Korinthos | 6,849.80 mi (11,023.70 km) |
| Rancho Cucamonga to Koropi | 6,879.32 mi (11,071.19 km) |
| Rancho Cucamonga to Korydallos | 6,868.03 mi (11,053.03 km) |
| Rancho Cucamonga to Kos | 7,035.16 mi (11,322.00 km) |
| Rancho Cucamonga to Kozani | 6,679.29 mi (10,749.28 km) |
| Rancho Cucamonga to Lagos | 6,723.41 mi (10,820.29 km) |
