| Boulder City to Corato | 6,288.77 mi (10,120.80 km) |
| Boulder City to Corbetta | 5,818.77 mi (9,364.41 km) |
| Boulder City to Corciano | 6,049.77 mi (9,736.16 km) |
| Boulder City to Cordenons | 5,912.52 mi (9,515.29 km) |
| Boulder City to Cori | 6,149.19 mi (9,896.16 km) |
| Boulder City to Coriano | 6,015.99 mi (9,681.80 km) |
| Boulder City to Corigliano Calabro | 6,377.50 mi (10,263.59 km) |
| Boulder City to Corleone | 6,365.85 mi (10,244.84 km) |
| Boulder City to Cormano | 5,822.71 mi (9,370.75 km) |
| Boulder City to Cornaredo | 5,820.90 mi (9,367.83 km) |
| Boulder City to Cornate d'Adda | 5,827.37 mi (9,378.25 km) |
| Boulder City to Cornedo Vicentino | 5,889.51 mi (9,478.25 km) |
| Boulder City to Correggio | 5,915.36 mi (9,519.85 km) |
| Boulder City to Corridonia | 6,083.39 mi (9,790.27 km) |
| Boulder City to Corsico | 5,827.03 mi (9,377.70 km) |
