| Olney to Butzbach | 4,037.61 mi (6,497.91 km) |
| Olney to Buxtehude | 3,991.55 mi (6,423.78 km) |
| Olney to Cadolzburg | 4,155.51 mi (6,687.65 km) |
| Olney to Calbe | 4,116.07 mi (6,624.18 km) |
| Olney to Calw | 4,091.30 mi (6,584.31 km) |
| Olney to Castrop-Rauxel | 3,952.81 mi (6,361.43 km) |
| Olney to Celle | 4,030.04 mi (6,485.72 km) |
| Olney to Cham | 4,234.27 mi (6,814.40 km) |
| Olney to Chemnitz | 4,193.16 mi (6,748.24 km) |
| Olney to Clausthal-Zellerfeld | 4,063.53 mi (6,539.63 km) |
| Olney to Cloppenburg | 3,945.97 mi (6,350.43 km) |
| Olney to Coburg | 4,134.33 mi (6,653.57 km) |
| Olney to Coesfeld | 3,936.03 mi (6,334.43 km) |
| Olney to Cologne | 3,955.21 mi (6,365.30 km) |
| Olney to Coswig | 4,209.40 mi (6,774.38 km) |
