| Ostrow Mazowiecka to Kamen | 607.59 mi (977.82 km) |
| Ostrow Mazowiecka to Kamenz | 347.86 mi (559.82 km) |
| Ostrow Mazowiecka to Kamp-Lintfort | 656.35 mi (1,056.29 km) |
| Ostrow Mazowiecka to Kandel | 648.06 mi (1,042.95 km) |
| Ostrow Mazowiecka to Kappeln | 505.15 mi (812.95 km) |
| Ostrow Mazowiecka to Karben | 590.86 mi (950.90 km) |
| Ostrow Mazowiecka to Karlsdorf-Neuthard | 632.65 mi (1,018.15 km) |
| Ostrow Mazowiecka to Karlsfeld | 556.33 mi (895.33 km) |
| Ostrow Mazowiecka to Karlsruhe | 642.44 mi (1,033.90 km) |
| Ostrow Mazowiecka to Kassel | 536.05 mi (862.69 km) |
| Ostrow Mazowiecka to Kaufbeuren | 601.32 mi (967.73 km) |
| Ostrow Mazowiecka to Kaufering | 583.15 mi (938.48 km) |
| Ostrow Mazowiecka to Kaufungen | 531.70 mi (855.69 km) |
| Ostrow Mazowiecka to Kehl | 680.87 mi (1,095.75 km) |
| Ostrow Mazowiecka to Kelheim | 512.62 mi (824.99 km) |
