| Heerenveen to Opwijk | 155.97 mi (251.01 km) |
| Heerenveen to Ostend | 174.80 mi (281.31 km) |
| Heerenveen to Oud-Heverlee | 155.90 mi (250.89 km) |
| Heerenveen to Oud-Turnhout | 119.82 mi (192.84 km) |
| Heerenveen to Oudenaarde | 175.90 mi (283.08 km) |
| Heerenveen to Oudenburg | 174.40 mi (280.66 km) |
| Heerenveen to Oupeye | 155.38 mi (250.06 km) |
| Heerenveen to Overijse | 161.17 mi (259.38 km) |
| Heerenveen to Overpelt | 121.75 mi (195.94 km) |
| Heerenveen to Paal | 135.93 mi (218.75 km) |
| Heerenveen to Peer | 127.20 mi (204.71 km) |
| Heerenveen to Pepinster | 164.75 mi (265.13 km) |
| Heerenveen to Peruwelz | 195.88 mi (315.24 km) |
| Heerenveen to Perwez | 167.66 mi (269.82 km) |
| Heerenveen to Philippeville | 199.06 mi (320.36 km) |
