| Opoczno to Carpentras | 867.68 mi (1,396.40 km) |
| Opoczno to Carquefou | 1,015.99 mi (1,635.08 km) |
| Opoczno to Carqueiranne | 875.98 mi (1,409.76 km) |
| Opoczno to Carrieres-sous-Poissy | 822.67 mi (1,323.96 km) |
| Opoczno to Carrieres-sur-Seine | 812.74 mi (1,307.98 km) |
| Opoczno to Carros | 803.23 mi (1,292.67 km) |
| Opoczno to Carvin | 755.23 mi (1,215.43 km) |
| Opoczno to Castanet-Tolosan | 1,027.88 mi (1,654.22 km) |
| Opoczno to Castelginest | 1,022.85 mi (1,646.12 km) |
| Opoczno to Castelnau-le-Lez | 929.83 mi (1,496.42 km) |
| Opoczno to Castelnaudary | 1,018.69 mi (1,639.42 km) |
| Opoczno to Castelsarrasin | 1,021.32 mi (1,643.65 km) |
| Opoczno to Castres | 994.86 mi (1,601.08 km) |
| Opoczno to Caudebec-les-Elbeuf | 859.43 mi (1,383.12 km) |
| Opoczno to Caudry | 741.08 mi (1,192.65 km) |
