| Ostrow Mazowiecka to Butzbach | 589.94 mi (949.41 km) |
| Ostrow Mazowiecka to Buxtehude | 507.15 mi (816.18 km) |
| Ostrow Mazowiecka to Cadolzburg | 530.75 mi (854.16 km) |
| Ostrow Mazowiecka to Calbe | 431.37 mi (694.22 km) |
| Ostrow Mazowiecka to Calw | 639.64 mi (1,029.40 km) |
| Ostrow Mazowiecka to Castrop-Rauxel | 622.82 mi (1,002.33 km) |
| Ostrow Mazowiecka to Celle | 494.24 mi (795.40 km) |
| Ostrow Mazowiecka to Cham | 471.70 mi (759.13 km) |
| Ostrow Mazowiecka to Chemnitz | 406.71 mi (654.54 km) |
| Ostrow Mazowiecka to Clausthal-Zellerfeld | 492.86 mi (793.18 km) |
| Ostrow Mazowiecka to Cloppenburg | 577.35 mi (929.15 km) |
| Ostrow Mazowiecka to Coburg | 500.84 mi (806.02 km) |
| Ostrow Mazowiecka to Coesfeld | 623.13 mi (1,002.82 km) |
| Ostrow Mazowiecka to Cologne | 649.30 mi (1,044.96 km) |
| Ostrow Mazowiecka to Coswig | 372.04 mi (598.75 km) |
