| Blackrock to Cologno al Serio | 887.35 mi (1,428.06 km) |
| Blackrock to Cologno Monzese | 875.02 mi (1,408.21 km) |
| Blackrock to Colorno | 942.32 mi (1,516.52 km) |
| Blackrock to Comacchio | 1,017.86 mi (1,638.09 km) |
| Blackrock to Comiso | 1,506.17 mi (2,423.94 km) |
| Blackrock to Como | 854.95 mi (1,375.90 km) |
| Blackrock to Concordia Sagittaria | 994.88 mi (1,601.10 km) |
| Blackrock to Concorezzo | 874.15 mi (1,406.82 km) |
| Blackrock to Conegliano | 968.89 mi (1,559.28 km) |
| Blackrock to Conselice | 1,013.80 mi (1,631.55 km) |
| Blackrock to Conselve | 981.81 mi (1,580.07 km) |
| Blackrock to Conversano | 1,376.77 mi (2,215.69 km) |
| Blackrock to Copertino | 1,445.55 mi (2,326.38 km) |
| Blackrock to Copparo | 995.87 mi (1,602.70 km) |
| Blackrock to Corato | 1,341.79 mi (2,159.40 km) |
