| Opoczno to Cavaillon | 878.06 mi (1,413.10 km) |
| Opoczno to Cebazat | 870.91 mi (1,401.59 km) |
| Opoczno to Cenon | 1,055.81 mi (1,699.16 km) |
| Opoczno to Cergy | 819.68 mi (1,319.16 km) |
| Opoczno to Cernay | 635.80 mi (1,023.22 km) |
| Opoczno to Cesson | 807.40 mi (1,299.38 km) |
| Opoczno to Cesson-Sevigne | 998.78 mi (1,607.39 km) |
| Opoczno to Cestas | 1,066.26 mi (1,715.97 km) |
| Opoczno to Chalette-sur-Loing | 815.89 mi (1,313.05 km) |
| Opoczno to Challans | 1,045.52 mi (1,682.61 km) |
| Opoczno to Chalon-sur-Saone | 765.37 mi (1,231.74 km) |
| Opoczno to Chalons-en-Champagne | 722.65 mi (1,162.99 km) |
| Opoczno to Chamalieres | 874.40 mi (1,407.20 km) |
| Opoczno to Chambery | 769.10 mi (1,237.74 km) |
| Opoczno to Chambly | 808.94 mi (1,301.86 km) |
