| Rockwall to Collegno | 5,253.75 mi (8,455.09 km) |
| Rockwall to Cologno al Serio | 5,320.58 mi (8,562.64 km) |
| Rockwall to Cologno Monzese | 5,305.78 mi (8,538.83 km) |
| Rockwall to Colorno | 5,373.38 mi (8,647.61 km) |
| Rockwall to Comacchio | 5,454.71 mi (8,778.51 km) |
| Rockwall to Comiso | 5,878.17 mi (9,460.01 km) |
| Rockwall to Como | 5,287.24 mi (8,508.99 km) |
| Rockwall to Concordia Sagittaria | 5,437.67 mi (8,751.08 km) |
| Rockwall to Concorezzo | 5,305.74 mi (8,538.76 km) |
| Rockwall to Conegliano | 5,411.25 mi (8,708.57 km) |
| Rockwall to Conselice | 5,448.14 mi (8,767.93 km) |
| Rockwall to Conselve | 5,420.64 mi (8,723.67 km) |
| Rockwall to Conversano | 5,810.02 mi (9,350.32 km) |
| Rockwall to Copertino | 5,878.57 mi (9,460.64 km) |
| Rockwall to Copparo | 5,432.71 mi (8,743.10 km) |
