| Opoczno to Flemalle-Haute | 645.84 mi (1,039.39 km) |
| Opoczno to Fleron | 636.14 mi (1,023.77 km) |
| Opoczno to Fleurus | 687.46 mi (1,106.36 km) |
| Opoczno to Florennes | 687.69 mi (1,106.74 km) |
| Opoczno to Fontaine-l'Eveque | 697.71 mi (1,122.86 km) |
| Opoczno to Forest | 692.36 mi (1,114.25 km) |
| Opoczno to Frameries | 716.20 mi (1,152.61 km) |
| Opoczno to Galmaarden | 708.51 mi (1,140.24 km) |
| Opoczno to Ganshoren | 692.11 mi (1,113.85 km) |
| Opoczno to Gavere | 719.36 mi (1,157.70 km) |
| Opoczno to Geel | 659.76 mi (1,061.78 km) |
| Opoczno to Gembloux | 679.89 mi (1,094.18 km) |
| Opoczno to Genappe | 689.52 mi (1,109.68 km) |
| Opoczno to Genk | 640.03 mi (1,030.03 km) |
| Opoczno to Gent | 715.60 mi (1,151.65 km) |
