| Holbrook to Cortona | 4,166.79 mi (6,705.80 km) |
| Holbrook to Cosenza | 4,499.13 mi (7,240.66 km) |
| Holbrook to Cossato | 3,925.84 mi (6,318.03 km) |
| Holbrook to Costa Volpino | 4,000.61 mi (6,438.37 km) |
| Holbrook to Creazzo | 4,069.27 mi (6,548.86 km) |
| Holbrook to Crema | 3,997.57 mi (6,433.47 km) |
| Holbrook to Cremona | 4,020.14 mi (6,469.78 km) |
| Holbrook to Crevalcore | 4,081.88 mi (6,569.15 km) |
| Holbrook to Crispiano | 4,493.16 mi (7,231.04 km) |
| Holbrook to Crosia | 4,511.96 mi (7,261.29 km) |
| Holbrook to Crotone | 4,546.06 mi (7,316.18 km) |
| Holbrook to Cuneo | 3,935.82 mi (6,334.09 km) |
| Holbrook to Cuorgne | 3,908.90 mi (6,290.77 km) |
| Holbrook to Cusano Milanino | 3,970.23 mi (6,389.46 km) |
| Holbrook to Cutro | 4,542.03 mi (7,309.69 km) |
