| Opoczno to Chaudfontaine | 638.72 mi (1,027.92 km) |
| Opoczno to Chaumont-Gistoux | 677.94 mi (1,091.03 km) |
| Opoczno to Chimay | 703.25 mi (1,131.77 km) |
| Opoczno to Ciney | 665.60 mi (1,071.18 km) |
| Opoczno to Colfontaine | 717.93 mi (1,155.40 km) |
| Opoczno to Courcelles | 694.61 mi (1,117.86 km) |
| Opoczno to Court-Saint-Etienne | 684.07 mi (1,100.91 km) |
| Opoczno to Couvin | 696.07 mi (1,120.21 km) |
| Opoczno to Damme | 732.74 mi (1,179.24 km) |
| Opoczno to De Haan | 743.25 mi (1,196.14 km) |
| Opoczno to De Panne | 763.82 mi (1,229.25 km) |
| Opoczno to De Pinte | 719.38 mi (1,157.73 km) |
| Opoczno to Deerlijk | 733.73 mi (1,180.82 km) |
| Opoczno to Deinze | 724.57 mi (1,166.09 km) |
| Opoczno to Denderleeuw | 701.98 mi (1,129.72 km) |
