| North Potomac to Carpentras | 4,084.22 mi (6,572.91 km) |
| North Potomac to Carquefou | 3,705.28 mi (5,963.08 km) |
| North Potomac to Carqueiranne | 4,159.96 mi (6,694.81 km) |
| North Potomac to Carrieres-sous-Poissy | 3,815.47 mi (6,140.40 km) |
| North Potomac to Carrieres-sur-Seine | 3,826.96 mi (6,158.90 km) |
| North Potomac to Carros | 4,188.22 mi (6,740.30 km) |
| North Potomac to Carvin | 3,814.37 mi (6,138.64 km) |
| North Potomac to Castanet-Tolosan | 3,940.62 mi (6,341.81 km) |
| North Potomac to Castelginest | 3,932.49 mi (6,328.74 km) |
| North Potomac to Castelnau-le-Lez | 4,045.68 mi (6,510.89 km) |
| North Potomac to Castelnaudary | 3,967.12 mi (6,384.46 km) |
| North Potomac to Castelsarrasin | 3,907.78 mi (6,288.97 km) |
| North Potomac to Castres | 3,972.26 mi (6,392.74 km) |
| North Potomac to Caudebec-les-Elbeuf | 3,764.23 mi (6,057.94 km) |
| North Potomac to Caudry | 3,842.35 mi (6,183.67 km) |
