| Birsfelden to Cortona | 363.42 mi (584.87 km) |
| Birsfelden to Cosenza | 714.99 mi (1,150.66 km) |
| Birsfelden to Cossato | 139.67 mi (224.77 km) |
| Birsfelden to Costa Volpino | 167.12 mi (268.96 km) |
| Birsfelden to Creazzo | 230.45 mi (370.87 km) |
| Birsfelden to Crema | 180.09 mi (289.83 km) |
| Birsfelden to Cremona | 202.88 mi (326.51 km) |
| Birsfelden to Crevalcore | 258.64 mi (416.24 km) |
| Birsfelden to Crispiano | 676.04 mi (1,087.98 km) |
| Birsfelden to Crosia | 715.97 mi (1,152.24 km) |
| Birsfelden to Crotone | 753.96 mi (1,213.38 km) |
| Birsfelden to Cuneo | 219.05 mi (352.53 km) |
| Birsfelden to Cuorgne | 149.50 mi (240.59 km) |
| Birsfelden to Cusano Milanino | 157.00 mi (252.67 km) |
| Birsfelden to Cutro | 752.58 mi (1,211.17 km) |
