| Smolyan to Carovigno | 370.91 mi (596.92 km) |
| Smolyan to Carpenedolo | 760.34 mi (1,223.65 km) |
| Smolyan to Carpi | 729.29 mi (1,173.69 km) |
| Smolyan to Carrara | 758.51 mi (1,220.71 km) |
| Smolyan to Carugate | 815.09 mi (1,311.77 km) |
| Smolyan to Casal di Principe | 549.54 mi (884.40 km) |
| Smolyan to Casale Monferrato | 850.30 mi (1,368.43 km) |
| Smolyan to Casale sul Sile | 677.29 mi (1,089.99 km) |
| Smolyan to Casalecchio di Reno | 705.66 mi (1,135.65 km) |
| Smolyan to Casalgrande | 733.59 mi (1,180.59 km) |
| Smolyan to Casalmaggiore | 754.79 mi (1,214.71 km) |
| Smolyan to Casalnuovo di Napoli | 539.29 mi (867.91 km) |
| Smolyan to Casalpusterlengo | 794.12 mi (1,278.02 km) |
| Smolyan to Casaluce | 546.24 mi (879.10 km) |
| Smolyan to Casamassima | 406.44 mi (654.10 km) |
