| Boulder City to Busto Arsizio | 5,809.26 mi (9,349.10 km) |
| Boulder City to Busto Garolfo | 5,813.67 mi (9,356.19 km) |
| Boulder City to Cabras | 6,087.18 mi (9,796.38 km) |
| Boulder City to Cadelbosco di Sopra | 5,909.64 mi (9,510.64 km) |
| Boulder City to Cadoneghe | 5,916.67 mi (9,521.96 km) |
| Boulder City to Cagli | 6,039.64 mi (9,719.86 km) |
| Boulder City to Cagliari | 6,143.93 mi (9,887.70 km) |
| Boulder City to Cairo Montenotte | 5,851.29 mi (9,416.74 km) |
| Boulder City to Caivano | 6,231.96 mi (10,029.36 km) |
| Boulder City to Calcinaia | 5,966.33 mi (9,601.88 km) |
| Boulder City to Calcinato | 5,867.87 mi (9,443.43 km) |
| Boulder City to Calderara di Reno | 5,941.62 mi (9,562.11 km) |
| Boulder City to Caldogno | 5,894.96 mi (9,487.02 km) |
| Boulder City to Calenzano | 5,974.87 mi (9,615.62 km) |
| Boulder City to Calolziocorte | 5,818.62 mi (9,364.16 km) |
