| Smolyan to Busto Garolfo | 836.04 mi (1,345.48 km) |
| Smolyan to Cabras | 852.46 mi (1,371.91 km) |
| Smolyan to Cadelbosco di Sopra | 742.61 mi (1,195.11 km) |
| Smolyan to Cadoneghe | 692.23 mi (1,114.03 km) |
| Smolyan to Cagli | 627.45 mi (1,009.78 km) |
| Smolyan to Cagliari | 834.94 mi (1,343.71 km) |
| Smolyan to Cairo Montenotte | 851.42 mi (1,370.23 km) |
| Smolyan to Caivano | 541.55 mi (871.54 km) |
| Smolyan to Calcinaia | 729.49 mi (1,174.00 km) |
| Smolyan to Calcinato | 762.85 mi (1,227.69 km) |
| Smolyan to Calderara di Reno | 707.66 mi (1,138.87 km) |
| Smolyan to Caldogno | 715.64 mi (1,151.72 km) |
| Smolyan to Calenzano | 703.92 mi (1,132.85 km) |
| Smolyan to Calolziocorte | 814.85 mi (1,311.38 km) |
| Smolyan to Caltagirone | 620.62 mi (998.80 km) |
