| Boulder City to Cognac | 5,488.39 mi (8,832.71 km) |
| Boulder City to Cogolin | 5,849.27 mi (9,413.49 km) |
| Boulder City to Colmar | 5,636.53 mi (9,071.11 km) |
| Boulder City to Colombes | 5,428.92 mi (8,737.01 km) |
| Boulder City to Colomiers | 5,645.55 mi (9,085.63 km) |
| Boulder City to Combs-la-Ville | 5,451.10 mi (8,772.71 km) |
| Boulder City to Comines | 5,367.48 mi (8,638.12 km) |
| Boulder City to Compiegne | 5,424.79 mi (8,730.36 km) |
| Boulder City to Concarneau | 5,261.53 mi (8,467.61 km) |
| Boulder City to Conde-sur-l'Escaut | 5,400.86 mi (8,691.85 km) |
| Boulder City to Conflans-Sainte-Honorine | 5,420.25 mi (8,723.05 km) |
| Boulder City to Corbas | 5,674.07 mi (9,131.54 km) |
| Boulder City to Corbeil-Essonnes | 5,451.13 mi (8,772.75 km) |
| Boulder City to Cormeilles-en-Parisis | 5,424.87 mi (8,730.49 km) |
| Boulder City to Cosne sur Loire | 5,522.87 mi (8,888.20 km) |
