| Soma to Cividale del Friuli | 862.35 mi (1,387.83 km) |
| Soma to Civita Castellana | 822.84 mi (1,324.24 km) |
| Soma to Civitanova Marche | 773.63 mi (1,245.04 km) |
| Soma to Civitavecchia | 851.50 mi (1,370.35 km) |
| Soma to Civitella in Val di Chiana | 873.42 mi (1,405.64 km) |
| Soma to Clusone | 1,008.01 mi (1,622.23 km) |
| Soma to Coccaglio | 999.00 mi (1,607.73 km) |
| Soma to Codigoro | 883.85 mi (1,422.42 km) |
| Soma to Codogno | 1,002.50 mi (1,613.36 km) |
| Soma to Codroipo | 877.19 mi (1,411.71 km) |
| Soma to Cogoleto | 1,037.96 mi (1,670.43 km) |
| Soma to Colle di Val d'Elsa | 901.61 mi (1,450.99 km) |
| Soma to Colle Salvetti | 936.47 mi (1,507.11 km) |
| Soma to Collecchio | 970.07 mi (1,561.18 km) |
| Soma to Colleferro | 785.95 mi (1,264.87 km) |
