| Ostrow Mazowiecka to Cabestany | 1,118.70 mi (1,800.38 km) |
| Ostrow Mazowiecka to Cabries | 995.20 mi (1,601.62 km) |
| Ostrow Mazowiecka to Cachan | 895.05 mi (1,440.44 km) |
| Ostrow Mazowiecka to Caen | 995.87 mi (1,602.70 km) |
| Ostrow Mazowiecka to Cagnes-sur-Mer | 923.72 mi (1,486.59 km) |
| Ostrow Mazowiecka to Cahors | 1,092.42 mi (1,758.08 km) |
| Ostrow Mazowiecka to Calais | 861.64 mi (1,386.68 km) |
| Ostrow Mazowiecka to Caluire-et-Cuire | 904.65 mi (1,455.89 km) |
| Ostrow Mazowiecka to Cambrai | 820.67 mi (1,320.75 km) |
| Ostrow Mazowiecka to Canet-en-Roussillon | 1,115.17 mi (1,794.70 km) |
| Ostrow Mazowiecka to Cannes | 934.09 mi (1,503.27 km) |
| Ostrow Mazowiecka to Canteleu | 930.21 mi (1,497.04 km) |
| Ostrow Mazowiecka to Capbreton | 1,238.33 mi (1,992.89 km) |
| Ostrow Mazowiecka to Carcassonne | 1,114.66 mi (1,793.87 km) |
| Ostrow Mazowiecka to Carmaux | 1,082.91 mi (1,742.78 km) |
