| Ostrow Mazowiecka to Karakocan | 1,287.55 mi (2,072.11 km) |
| Ostrow Mazowiecka to Karakopru | 1,351.23 mi (2,174.60 km) |
| Ostrow Mazowiecka to Karaman | 1,209.23 mi (1,946.06 km) |
| Ostrow Mazowiecka to Karapinar | 1,182.95 mi (1,903.77 km) |
| Ostrow Mazowiecka to Karatas | 1,297.94 mi (2,088.83 km) |
| Ostrow Mazowiecka to Karatepe | 915.62 mi (1,473.54 km) |
| Ostrow Mazowiecka to Karayilan | 1,309.67 mi (2,107.70 km) |
| Ostrow Mazowiecka to Kargipinar | 1,268.61 mi (2,041.63 km) |
| Ostrow Mazowiecka to Karkamis | 1,349.61 mi (2,171.99 km) |
| Ostrow Mazowiecka to Karliova | 1,299.90 mi (2,091.99 km) |
| Ostrow Mazowiecka to Kars | 1,302.09 mi (2,095.52 km) |
| Ostrow Mazowiecka to Kartal | 891.18 mi (1,434.22 km) |
| Ostrow Mazowiecka to Kas | 1,206.94 mi (1,942.38 km) |
| Ostrow Mazowiecka to Kastamonu | 964.32 mi (1,551.92 km) |
| Ostrow Mazowiecka to Kavak | 1,045.64 mi (1,682.79 km) |
