| Bethesda to Collegno | 4,162.70 mi (6,699.22 km) |
| Bethesda to Cologno al Serio | 4,238.40 mi (6,821.05 km) |
| Bethesda to Cologno Monzese | 4,222.10 mi (6,794.81 km) |
| Bethesda to Colorno | 4,288.89 mi (6,902.30 km) |
| Bethesda to Comacchio | 4,373.86 mi (7,039.04 km) |
| Bethesda to Comiso | 4,762.40 mi (7,664.35 km) |
| Bethesda to Como | 4,204.88 mi (6,767.10 km) |
| Bethesda to Concordia Sagittaria | 4,365.81 mi (7,026.10 km) |
| Bethesda to Concorezzo | 4,222.61 mi (6,795.63 km) |
| Bethesda to Conegliano | 4,338.55 mi (6,982.22 km) |
| Bethesda to Conselice | 4,365.11 mi (7,024.96 km) |
| Bethesda to Conselve | 4,342.31 mi (6,988.27 km) |
| Bethesda to Conversano | 4,721.71 mi (7,598.86 km) |
| Bethesda to Copertino | 4,789.29 mi (7,707.62 km) |
| Bethesda to Copparo | 4,352.12 mi (7,004.07 km) |
