| Ostrow Mazowiecka to Cankova | 495.05 mi (796.70 km) |
| Ostrow Mazowiecka to Celje | 541.90 mi (872.11 km) |
| Ostrow Mazowiecka to Cerklje na Gorenjskem | 561.04 mi (902.90 km) |
| Ostrow Mazowiecka to Cerknica | 590.60 mi (950.49 km) |
| Ostrow Mazowiecka to Cerkno | 581.18 mi (935.32 km) |
| Ostrow Mazowiecka to Cerkvenjak | 506.01 mi (814.35 km) |
| Ostrow Mazowiecka to Cirkulane | 518.27 mi (834.08 km) |
| Ostrow Mazowiecka to Crensovci | 497.46 mi (800.58 km) |
| Ostrow Mazowiecka to Crna na Koroskem | 538.76 mi (867.05 km) |
| Ostrow Mazowiecka to Crnomelj | 583.65 mi (939.30 km) |
| Ostrow Mazowiecka to Destrnik | 511.91 mi (823.85 km) |
| Ostrow Mazowiecka to Divaca | 607.36 mi (977.45 km) |
| Ostrow Mazowiecka to Dobje | 544.73 mi (876.65 km) |
| Ostrow Mazowiecka to Dobrna | 536.79 mi (863.88 km) |
| Ostrow Mazowiecka to Dobrova | 574.20 mi (924.08 km) |
