| Boulder to Cervignano del Friuli | 5,397.45 mi (8,686.36 km) |
| Boulder to Cesa | 5,674.19 mi (9,131.73 km) |
| Boulder to Cesano Maderno | 5,264.89 mi (8,473.03 km) |
| Boulder to Cesena | 5,444.94 mi (8,762.78 km) |
| Boulder to Cesenatico | 5,447.03 mi (8,766.15 km) |
| Boulder to Cetraro | 5,810.08 mi (9,350.43 km) |
| Boulder to Cherasco | 5,266.82 mi (8,476.13 km) |
| Boulder to Chiampo | 5,342.22 mi (8,597.48 km) |
| Boulder to Chiaravalle | 5,509.27 mi (8,866.31 km) |
| Boulder to Chiari | 5,295.77 mi (8,522.72 km) |
| Boulder to Chiavari | 5,334.83 mi (8,585.59 km) |
| Boulder to Chieri | 5,247.95 mi (8,445.75 km) |
| Boulder to Chieti | 5,601.27 mi (9,014.37 km) |
| Boulder to Chioggia | 5,392.30 mi (8,678.06 km) |
| Boulder to Chiusi | 5,490.66 mi (8,836.36 km) |
