| Blackrock to Civita Castellana | 1,143.78 mi (1,840.73 km) |
| Blackrock to Civitanova Marche | 1,140.25 mi (1,835.06 km) |
| Blackrock to Civitavecchia | 1,133.31 mi (1,823.88 km) |
| Blackrock to Civitella in Val di Chiana | 1,063.14 mi (1,710.96 km) |
| Blackrock to Clusone | 882.45 mi (1,420.16 km) |
| Blackrock to Coccaglio | 898.21 mi (1,445.53 km) |
| Blackrock to Codigoro | 1,009.26 mi (1,624.25 km) |
| Blackrock to Codogno | 907.59 mi (1,460.63 km) |
| Blackrock to Codroipo | 991.43 mi (1,595.55 km) |
| Blackrock to Cogoleto | 909.69 mi (1,464.01 km) |
| Blackrock to Colle di Val d'Elsa | 1,043.85 mi (1,679.92 km) |
| Blackrock to Colle Salvetti | 1,011.57 mi (1,627.96 km) |
| Blackrock to Collecchio | 945.28 mi (1,521.29 km) |
| Blackrock to Colleferro | 1,193.53 mi (1,920.80 km) |
| Blackrock to Collegno | 839.06 mi (1,350.34 km) |
