| Blackrock to Busto Garolfo | 860.39 mi (1,384.67 km) |
| Blackrock to Cabras | 1,153.03 mi (1,855.62 km) |
| Blackrock to Cadelbosco di Sopra | 957.95 mi (1,541.68 km) |
| Blackrock to Cadoneghe | 974.50 mi (1,568.31 km) |
| Blackrock to Cagli | 1,089.37 mi (1,753.17 km) |
| Blackrock to Cagliari | 1,210.67 mi (1,948.39 km) |
| Blackrock to Cairo Montenotte | 896.64 mi (1,443.01 km) |
| Blackrock to Caivano | 1,278.13 mi (2,056.95 km) |
| Blackrock to Calcinaia | 1,011.89 mi (1,628.48 km) |
| Blackrock to Calcinato | 918.74 mi (1,478.57 km) |
| Blackrock to Calderara di Reno | 991.16 mi (1,595.12 km) |
| Blackrock to Caldogno | 951.60 mi (1,531.45 km) |
| Blackrock to Calenzano | 1,021.67 mi (1,644.22 km) |
| Blackrock to Calolziocorte | 867.75 mi (1,396.51 km) |
| Blackrock to Caltagirone | 1,487.12 mi (2,393.30 km) |
