| Smolyan to Catania | 584.11 mi (940.03 km) |
| Smolyan to Catanzaro | 465.45 mi (749.06 km) |
| Smolyan to Cattolica | 628.21 mi (1,011.00 km) |
| Smolyan to Cava de' Tirreni | 523.60 mi (842.65 km) |
| Smolyan to Cavallino | 350.21 mi (563.61 km) |
| Smolyan to Cavarzere | 678.85 mi (1,092.51 km) |
| Smolyan to Cave | 606.76 mi (976.48 km) |
| Smolyan to Cavriago | 744.85 mi (1,198.72 km) |
| Smolyan to Cavriglia | 685.09 mi (1,102.54 km) |
| Smolyan to Cazzago San Martino | 783.27 mi (1,260.55 km) |
| Smolyan to Ceccano | 587.10 mi (944.84 km) |
| Smolyan to Cecina | 732.01 mi (1,178.06 km) |
| Smolyan to Cefalu | 617.25 mi (993.36 km) |
| Smolyan to Ceglie Messapico | 380.17 mi (611.82 km) |
| Smolyan to Celano | 574.25 mi (924.17 km) |
