| Effingham to Cernavoda | 5,450.96 mi (8,772.48 km) |
| Effingham to Chitila | 5,370.38 mi (8,642.79 km) |
| Effingham to Cisnadie | 5,248.33 mi (8,446.37 km) |
| Effingham to Cluj-Napoca | 5,179.33 mi (8,335.33 km) |
| Effingham to Codlea | 5,294.82 mi (8,521.19 km) |
| Effingham to Comanesti | 5,294.98 mi (8,521.45 km) |
| Effingham to Comarnic | 5,322.70 mi (8,566.06 km) |
| Effingham to Constanta | 5,480.28 mi (8,819.66 km) |
| Effingham to Corabia | 5,351.96 mi (8,613.14 km) |
| Effingham to Costesti | 5,323.33 mi (8,567.08 km) |
| Effingham to Covasna | 5,313.52 mi (8,551.29 km) |
| Effingham to Craiova | 5,300.67 mi (8,530.61 km) |
| Effingham to Cristuru Secuiesc | 5,252.43 mi (8,452.97 km) |
| Effingham to Cugir | 5,214.16 mi (8,391.38 km) |
| Effingham to Cumpana | 5,480.23 mi (8,819.58 km) |
