| North Potomac to Busto Arsizio | 4,201.70 mi (6,761.98 km) |
| North Potomac to Busto Garolfo | 4,205.25 mi (6,767.69 km) |
| North Potomac to Cabras | 4,376.45 mi (7,043.21 km) |
| North Potomac to Cadelbosco di Sopra | 4,304.31 mi (6,927.12 km) |
| North Potomac to Cadoneghe | 4,338.24 mi (6,981.73 km) |
| North Potomac to Cagli | 4,434.20 mi (7,136.16 km) |
| North Potomac to Cagliari | 4,427.60 mi (7,125.53 km) |
| North Potomac to Cairo Montenotte | 4,215.26 mi (6,783.80 km) |
| North Potomac to Caivano | 4,599.75 mi (7,402.59 km) |
| North Potomac to Calcinaia | 4,341.43 mi (6,986.86 km) |
| North Potomac to Calcinato | 4,273.49 mi (6,877.51 km) |
| North Potomac to Calderara di Reno | 4,339.66 mi (6,984.01 km) |
| North Potomac to Caldogno | 4,314.64 mi (6,943.74 km) |
| North Potomac to Calenzano | 4,359.10 mi (7,015.30 km) |
| North Potomac to Calolziocorte | 4,220.54 mi (6,792.30 km) |
