| Oak Park to Cernavoda | 5,280.58 mi (8,498.28 km) |
| Oak Park to Chitila | 5,201.59 mi (8,371.15 km) |
| Oak Park to Cisnadie | 5,079.59 mi (8,174.81 km) |
| Oak Park to Cluj-Napoca | 5,009.70 mi (8,062.33 km) |
| Oak Park to Codlea | 5,125.00 mi (8,247.90 km) |
| Oak Park to Comanesti | 5,123.43 mi (8,245.37 km) |
| Oak Park to Comarnic | 5,153.28 mi (8,293.41 km) |
| Oak Park to Constanta | 5,309.58 mi (8,544.94 km) |
| Oak Park to Corabia | 5,185.45 mi (8,345.17 km) |
| Oak Park to Costesti | 5,155.31 mi (8,296.67 km) |
| Oak Park to Covasna | 5,142.90 mi (8,276.69 km) |
| Oak Park to Craiova | 5,134.04 mi (8,262.44 km) |
| Oak Park to Cristuru Secuiesc | 5,082.21 mi (8,179.03 km) |
| Oak Park to Cugir | 5,045.92 mi (8,120.62 km) |
| Oak Park to Cumpana | 5,309.66 mi (8,545.07 km) |
