| Balassagyarmat to Oria | 530.00 mi (852.95 km) |
| Balassagyarmat to Oristano | 774.39 mi (1,246.26 km) |
| Balassagyarmat to Orta Nova | 498.17 mi (801.73 km) |
| Balassagyarmat to Orte | 512.92 mi (825.47 km) |
| Balassagyarmat to Ortona | 461.74 mi (743.10 km) |
| Balassagyarmat to Orvieto | 508.13 mi (817.76 km) |
| Balassagyarmat to Orzinuovi | 479.93 mi (772.37 km) |
| Balassagyarmat to Osimo | 423.09 mi (680.89 km) |
| Balassagyarmat to Ospitaletto | 469.18 mi (755.07 km) |
| Balassagyarmat to Ostuni | 514.45 mi (827.93 km) |
| Balassagyarmat to Ottaviano | 552.77 mi (889.60 km) |
| Balassagyarmat to Ovada | 559.95 mi (901.15 km) |
| Balassagyarmat to Ozieri | 724.56 mi (1,166.07 km) |
| Balassagyarmat to Paceco | 775.50 mi (1,248.05 km) |
| Balassagyarmat to Pachino | 813.35 mi (1,308.96 km) |
