| Olean to Cernavoda | 4,937.56 mi (7,946.23 km) |
| Olean to Chitila | 4,853.21 mi (7,810.48 km) |
| Olean to Cisnadie | 4,731.38 mi (7,614.41 km) |
| Olean to Cluj-Napoca | 4,664.79 mi (7,507.26 km) |
| Olean to Codlea | 4,780.41 mi (7,693.33 km) |
| Olean to Comanesti | 4,785.13 mi (7,700.92 km) |
| Olean to Comarnic | 4,807.22 mi (7,736.47 km) |
| Olean to Constanta | 4,967.62 mi (7,994.62 km) |
| Olean to Corabia | 4,829.54 mi (7,772.39 km) |
| Olean to Costesti | 4,804.45 mi (7,732.02 km) |
| Olean to Covasna | 4,801.15 mi (7,726.71 km) |
| Olean to Craiova | 4,778.65 mi (7,690.50 km) |
| Olean to Cristuru Secuiesc | 4,739.18 mi (7,626.97 km) |
| Olean to Cugir | 4,696.10 mi (7,557.64 km) |
| Olean to Cumpana | 4,967.23 mi (7,993.99 km) |
