| Effingham to Corato | 5,158.81 mi (8,302.30 km) |
| Effingham to Corbetta | 4,679.33 mi (7,530.65 km) |
| Effingham to Corciano | 4,908.17 mi (7,898.93 km) |
| Effingham to Cordenons | 4,808.94 mi (7,739.24 km) |
| Effingham to Cori | 4,995.38 mi (8,039.29 km) |
| Effingham to Coriano | 4,886.87 mi (7,864.66 km) |
| Effingham to Corigliano Calabro | 5,231.23 mi (8,418.85 km) |
| Effingham to Corleone | 5,173.07 mi (8,325.25 km) |
| Effingham to Cormano | 4,686.18 mi (7,541.68 km) |
| Effingham to Cornaredo | 4,682.74 mi (7,536.14 km) |
| Effingham to Cornate d'Adda | 4,694.35 mi (7,554.83 km) |
| Effingham to Cornedo Vicentino | 4,770.60 mi (7,677.54 km) |
| Effingham to Correggio | 4,781.55 mi (7,695.17 km) |
| Effingham to Corridonia | 4,953.21 mi (7,971.43 km) |
| Effingham to Corsico | 4,688.67 mi (7,545.68 km) |
