| Wallingford to Cortona | 838.09 mi (1,348.77 km) |
| Wallingford to Cosenza | 1,190.57 mi (1,916.04 km) |
| Wallingford to Cossato | 594.18 mi (956.25 km) |
| Wallingford to Costa Volpino | 647.40 mi (1,041.88 km) |
| Wallingford to Creazzo | 711.14 mi (1,144.47 km) |
| Wallingford to Crema | 654.89 mi (1,053.94 km) |
| Wallingford to Cremona | 678.33 mi (1,091.66 km) |
| Wallingford to Crevalcore | 737.36 mi (1,186.67 km) |
| Wallingford to Crispiano | 1,156.55 mi (1,861.28 km) |
| Wallingford to Crosia | 1,193.82 mi (1,921.27 km) |
| Wallingford to Crotone | 1,231.47 mi (1,981.86 km) |
| Wallingford to Cuneo | 638.98 mi (1,028.34 km) |
| Wallingford to Cuorgne | 586.98 mi (944.65 km) |
| Wallingford to Cusano Milanino | 628.82 mi (1,011.99 km) |
| Wallingford to Cutro | 1,229.61 mi (1,978.86 km) |
