| Holbrook to Chivasso | 3,925.37 mi (6,317.27 km) |
| Holbrook to Ciampino | 4,245.06 mi (6,831.76 km) |
| Holbrook to Cicciano | 4,360.60 mi (7,017.70 km) |
| Holbrook to Cingoli | 4,217.12 mi (6,786.79 km) |
| Holbrook to Cinisello Balsamo | 3,971.67 mi (6,391.78 km) |
| Holbrook to Cinisi | 4,399.37 mi (7,080.11 km) |
| Holbrook to Cirie | 3,911.51 mi (6,294.97 km) |
| Holbrook to Ciro Marina | 4,535.54 mi (7,299.25 km) |
| Holbrook to Cislago | 3,957.76 mi (6,369.40 km) |
| Holbrook to Cisterna di Latina | 4,262.58 mi (6,859.96 km) |
| Holbrook to Cisternino | 4,496.84 mi (7,236.97 km) |
| Holbrook to Citta di Castello | 4,171.59 mi (6,713.53 km) |
| Holbrook to Citta Sant'Angelo | 4,283.33 mi (6,893.36 km) |
| Holbrook to Cittadella | 4,078.20 mi (6,563.23 km) |
| Holbrook to Cittanova | 4,527.97 mi (7,287.06 km) |
