| Boulder City to Chivasso | 5,798.67 mi (9,332.06 km) |
| Boulder City to Ciampino | 6,130.60 mi (9,866.25 km) |
| Boulder City to Cicciano | 6,238.69 mi (10,040.20 km) |
| Boulder City to Cingoli | 6,067.57 mi (9,764.81 km) |
| Boulder City to Cinisello Balsamo | 5,824.34 mi (9,373.38 km) |
| Boulder City to Cinisi | 6,340.28 mi (10,203.69 km) |
| Boulder City to Cirie | 5,786.86 mi (9,313.05 km) |
| Boulder City to Ciro Marina | 6,409.91 mi (10,315.75 km) |
| Boulder City to Cislago | 5,811.09 mi (9,352.04 km) |
| Boulder City to Cisterna di Latina | 6,149.24 mi (9,896.25 km) |
| Boulder City to Cisternino | 6,344.30 mi (10,210.16 km) |
| Boulder City to Citta di Castello | 6,031.22 mi (9,706.31 km) |
| Boulder City to Citta Sant'Angelo | 6,139.71 mi (9,880.90 km) |
| Boulder City to Cittadella | 5,901.46 mi (9,497.48 km) |
| Boulder City to Cittanova | 6,431.70 mi (10,350.82 km) |
