| Big Spring to Collegno | 5,490.87 mi (8,836.70 km) |
| Big Spring to Cologno al Serio | 5,553.58 mi (8,937.62 km) |
| Big Spring to Cologno Monzese | 5,539.49 mi (8,914.95 km) |
| Big Spring to Colorno | 5,607.18 mi (9,023.89 km) |
| Big Spring to Comacchio | 5,686.63 mi (9,151.75 km) |
| Big Spring to Comiso | 6,125.36 mi (9,857.81 km) |
| Big Spring to Como | 5,520.45 mi (8,884.30 km) |
| Big Spring to Concordia Sagittaria | 5,665.82 mi (9,118.25 km) |
| Big Spring to Concorezzo | 5,539.21 mi (8,914.49 km) |
| Big Spring to Conegliano | 5,639.87 mi (9,076.49 km) |
| Big Spring to Conselice | 5,681.04 mi (9,142.74 km) |
| Big Spring to Conselve | 5,651.60 mi (9,095.37 km) |
| Big Spring to Conversano | 6,043.98 mi (9,726.85 km) |
| Big Spring to Copertino | 6,112.74 mi (9,837.50 km) |
| Big Spring to Copparo | 5,664.60 mi (9,116.30 km) |
