| Olean to Chojnice | 4,171.44 mi (6,713.29 km) |
| Olean to Chojnow | 4,202.74 mi (6,763.66 km) |
| Olean to Chorzow | 4,349.58 mi (6,999.97 km) |
| Olean to Choszczno | 4,115.61 mi (6,623.44 km) |
| Olean to Chrzanow | 4,372.50 mi (7,036.86 km) |
| Olean to Ciechanow | 4,309.59 mi (6,935.62 km) |
| Olean to Ciechocinek | 4,244.71 mi (6,831.19 km) |
| Olean to Cieszyn | 4,359.38 mi (7,015.74 km) |
| Olean to Czarna Bialostocka | 4,382.63 mi (7,053.17 km) |
| Olean to Czarnkow | 4,166.02 mi (6,704.57 km) |
| Olean to Czechowice-Dziedzice | 4,366.73 mi (7,027.58 km) |
| Olean to Czeladz | 4,353.14 mi (7,005.71 km) |
| Olean to Czersk Pomorski | 4,182.74 mi (6,731.47 km) |
| Olean to Czestochowa | 4,336.21 mi (6,978.46 km) |
| Olean to Czluchow | 4,166.29 mi (6,704.99 km) |
