| Barstow to Collegno | 5,918.80 mi (9,525.39 km) |
| Barstow to Cologno al Serio | 5,961.84 mi (9,594.66 km) |
| Barstow to Cologno Monzese | 5,951.20 mi (9,577.53 km) |
| Barstow to Colorno | 6,017.54 mi (9,684.30 km) |
| Barstow to Comacchio | 6,086.70 mi (9,795.60 km) |
| Barstow to Comiso | 6,583.54 mi (10,595.18 km) |
| Barstow to Como | 5,930.48 mi (9,544.18 km) |
| Barstow to Concordia Sagittaria | 6,050.18 mi (9,736.82 km) |
| Barstow to Concorezzo | 5,949.88 mi (9,575.41 km) |
| Barstow to Conegliano | 6,026.92 mi (9,699.39 km) |
| Barstow to Conselice | 6,085.48 mi (9,793.64 km) |
| Barstow to Conselve | 6,048.44 mi (9,734.03 km) |
| Barstow to Conversano | 6,443.58 mi (10,369.94 km) |
| Barstow to Copertino | 6,511.44 mi (10,479.16 km) |
| Barstow to Copparo | 6,065.11 mi (9,760.86 km) |
