| Potomac to Brezovica | 4,424.43 mi (7,120.44 km) |
| Potomac to Cankova | 4,465.60 mi (7,186.70 km) |
| Potomac to Celje | 4,451.99 mi (7,164.78 km) |
| Potomac to Cerklje na Gorenjskem | 4,419.30 mi (7,112.18 km) |
| Potomac to Cerknica | 4,429.77 mi (7,129.02 km) |
| Potomac to Cerkno | 4,403.03 mi (7,085.99 km) |
| Potomac to Cerkvenjak | 4,467.98 mi (7,190.52 km) |
| Potomac to Cirkulane | 4,477.97 mi (7,206.60 km) |
| Potomac to Crensovci | 4,481.96 mi (7,213.02 km) |
| Potomac to Crna na Koroskem | 4,426.59 mi (7,123.91 km) |
| Potomac to Crnomelj | 4,472.21 mi (7,197.33 km) |
| Potomac to Destrnik | 4,468.03 mi (7,190.60 km) |
| Potomac to Divaca | 4,417.59 mi (7,109.42 km) |
| Potomac to Dobje | 4,460.70 mi (7,178.80 km) |
| Potomac to Dobrna | 4,446.82 mi (7,156.47 km) |
