| Potomac to Cermik | 5,763.40 mi (9,275.30 km) |
| Potomac to Cesme | 5,225.90 mi (8,410.27 km) |
| Potomac to Ceyhan | 5,675.67 mi (9,134.11 km) |
| Potomac to Ceylanpinar | 5,850.24 mi (9,415.06 km) |
| Potomac to Cicekdagi | 5,498.18 mi (8,848.46 km) |
| Potomac to Cide | 5,337.70 mi (8,590.19 km) |
| Potomac to Cifteler | 5,374.67 mi (8,649.70 km) |
| Potomac to Ciftlik | 5,568.79 mi (8,962.11 km) |
| Potomac to Ciftlikkoy | 5,248.35 mi (8,446.40 km) |
| Potomac to Cihanbeyli | 5,483.79 mi (8,825.31 km) |
| Potomac to Cildir | 5,747.99 mi (9,250.49 km) |
| Potomac to Cilimli | 5,306.56 mi (8,540.08 km) |
| Potomac to Cinar | 5,820.44 mi (9,367.10 km) |
| Potomac to Cinarcik | 5,240.96 mi (8,434.51 km) |
| Potomac to Cine | 5,331.20 mi (8,579.74 km) |
