| Olean to Butzbach | 3,957.22 mi (6,368.53 km) |
| Olean to Buxtehude | 3,898.88 mi (6,274.64 km) |
| Olean to Cadolzburg | 4,076.02 mi (6,559.72 km) |
| Olean to Calbe | 4,026.80 mi (6,480.51 km) |
| Olean to Calw | 4,017.13 mi (6,464.94 km) |
| Olean to Castrop-Rauxel | 3,869.79 mi (6,227.83 km) |
| Olean to Celle | 3,940.06 mi (6,340.91 km) |
| Olean to Cham | 4,153.34 mi (6,684.16 km) |
| Olean to Chemnitz | 4,106.29 mi (6,608.44 km) |
| Olean to Clausthal-Zellerfeld | 3,976.24 mi (6,399.14 km) |
| Olean to Cloppenburg | 3,857.32 mi (6,207.75 km) |
| Olean to Coburg | 4,051.81 mi (6,520.76 km) |
| Olean to Coesfeld | 3,851.67 mi (6,198.67 km) |
| Olean to Cologne | 3,874.91 mi (6,236.07 km) |
| Olean to Coswig | 4,120.69 mi (6,631.62 km) |
