| Ostrow Mazowiecka to Cervello | 1,217.68 mi (1,959.67 km) |
| Ostrow Mazowiecka to Cervera | 1,228.72 mi (1,977.43 km) |
| Ostrow Mazowiecka to Ceuti | 1,503.09 mi (2,418.99 km) |
| Ostrow Mazowiecka to Cheste | 1,409.17 mi (2,267.84 km) |
| Ostrow Mazowiecka to Chiclana de la Frontera | 1,764.99 mi (2,840.48 km) |
| Ostrow Mazowiecka to Chipiona | 1,759.05 mi (2,830.92 km) |
| Ostrow Mazowiecka to Chiva | 1,410.85 mi (2,270.55 km) |
| Ostrow Mazowiecka to Churriana de la Vega | 1,636.14 mi (2,633.11 km) |
| Ostrow Mazowiecka to Ciempozuelos | 1,482.61 mi (2,386.03 km) |
| Ostrow Mazowiecka to Cieza | 1,499.76 mi (2,413.63 km) |
| Ostrow Mazowiecka to Cisterniga | 1,454.84 mi (2,341.35 km) |
| Ostrow Mazowiecka to Ciudad de Melilla | 1,712.00 mi (2,755.20 km) |
| Ostrow Mazowiecka to Ciudad Real | 1,551.72 mi (2,497.25 km) |
| Ostrow Mazowiecka to Ciudad-Rodrigo | 1,573.88 mi (2,532.92 km) |
| Ostrow Mazowiecka to Cocentaina | 1,438.89 mi (2,315.67 km) |
