| North Potomac to Cervignano del Friuli | 4,384.45 mi (7,056.09 km) |
| North Potomac to Cesa | 4,596.19 mi (7,396.86 km) |
| North Potomac to Cesano Maderno | 4,213.68 mi (6,781.27 km) |
| North Potomac to Cesena | 4,396.26 mi (7,075.10 km) |
| North Potomac to Cesenatico | 4,400.59 mi (7,082.07 km) |
| North Potomac to Cetraro | 4,727.26 mi (7,607.79 km) |
| North Potomac to Cherasco | 4,189.79 mi (6,742.81 km) |
| North Potomac to Chiampo | 4,307.37 mi (6,932.04 km) |
| North Potomac to Chiaravalle | 4,461.88 mi (7,180.71 km) |
| North Potomac to Chiari | 4,248.81 mi (6,837.79 km) |
| North Potomac to Chiavari | 4,264.45 mi (6,862.96 km) |
| North Potomac to Chieri | 4,176.30 mi (6,721.11 km) |
| North Potomac to Chieti | 4,542.68 mi (7,310.74 km) |
| North Potomac to Chioggia | 4,360.68 mi (7,017.83 km) |
| North Potomac to Chiusi | 4,422.46 mi (7,117.25 km) |
