| Boulder City to Campo de Criptana | 5,666.61 mi (9,119.52 km) |
| Boulder City to Campos del Puerto | 5,907.42 mi (9,507.08 km) |
| Boulder City to Canals | 5,788.51 mi (9,315.71 km) |
| Boulder City to Candelaria | 5,534.22 mi (8,906.47 km) |
| Boulder City to Canet de Mar | 5,787.42 mi (9,313.95 km) |
| Boulder City to Cangas | 5,311.89 mi (8,548.65 km) |
| Boulder City to Cangas de Narcea | 5,364.11 mi (8,632.70 km) |
| Boulder City to Canovellas | 5,774.88 mi (9,293.77 km) |
| Boulder City to Canteras | 5,832.29 mi (9,386.16 km) |
| Boulder City to Cantillana | 5,634.33 mi (9,067.58 km) |
| Boulder City to Capdepera | 5,910.25 mi (9,511.63 km) |
| Boulder City to Carballo | 5,276.42 mi (8,491.58 km) |
| Boulder City to Carcagente | 5,786.48 mi (9,312.44 km) |
| Boulder City to Cardedeu | 5,776.70 mi (9,296.71 km) |
| Boulder City to Carlet | 5,778.79 mi (9,300.06 km) |
