| Sulmona to Cividale del Friuli | 281.03 mi (452.28 km) |
| Sulmona to Civita Castellana | 79.51 mi (127.96 km) |
| Sulmona to Civitanova Marche | 87.06 mi (140.11 km) |
| Sulmona to Civitavecchia | 109.10 mi (175.58 km) |
| Sulmona to Civitella in Val di Chiana | 146.68 mi (236.06 km) |
| Sulmona to Clusone | 330.54 mi (531.96 km) |
| Sulmona to Coccaglio | 312.56 mi (503.01 km) |
| Sulmona to Codigoro | 212.77 mi (342.42 km) |
| Sulmona to Codogno | 301.31 mi (484.91 km) |
| Sulmona to Codroipo | 274.52 mi (441.80 km) |
| Sulmona to Cogoleto | 311.12 mi (500.69 km) |
| Sulmona to Colle di Val d'Elsa | 169.76 mi (273.20 km) |
| Sulmona to Colle Salvetti | 204.77 mi (329.54 km) |
| Sulmona to Collecchio | 263.64 mi (424.28 km) |
| Sulmona to Colleferro | 51.59 mi (83.02 km) |
