| Sozopol to Civita Castellana | 779.66 mi (1,254.74 km) |
| Sozopol to Civitanova Marche | 709.18 mi (1,141.31 km) |
| Sozopol to Civitavecchia | 812.19 mi (1,307.09 km) |
| Sozopol to Civitella in Val di Chiana | 810.45 mi (1,304.29 km) |
| Sozopol to Clusone | 909.83 mi (1,464.24 km) |
| Sozopol to Coccaglio | 905.32 mi (1,456.96 km) |
| Sozopol to Codigoro | 795.74 mi (1,280.63 km) |
| Sozopol to Codogno | 915.31 mi (1,473.04 km) |
| Sozopol to Codroipo | 768.00 mi (1,235.98 km) |
| Sozopol to Cogoleto | 963.90 mi (1,551.25 km) |
| Sozopol to Colle di Val d'Elsa | 839.75 mi (1,351.44 km) |
| Sozopol to Colle Salvetti | 872.13 mi (1,403.55 km) |
| Sozopol to Collecchio | 887.94 mi (1,429.00 km) |
| Sozopol to Colleferro | 753.58 mi (1,212.77 km) |
| Sozopol to Collegno | 1,018.53 mi (1,639.17 km) |
