| Radviliskis to Opwijk | 861.50 mi (1,386.46 km) |
| Radviliskis to Ostend | 900.48 mi (1,449.18 km) |
| Radviliskis to Oud-Heverlee | 848.11 mi (1,364.90 km) |
| Radviliskis to Oud-Turnhout | 819.39 mi (1,318.68 km) |
| Radviliskis to Oudenaarde | 887.51 mi (1,428.31 km) |
| Radviliskis to Oudenburg | 898.82 mi (1,446.52 km) |
| Radviliskis to Oupeye | 816.40 mi (1,313.86 km) |
| Radviliskis to Overijse | 854.88 mi (1,375.80 km) |
| Radviliskis to Overpelt | 806.56 mi (1,298.04 km) |
| Radviliskis to Paal | 821.89 mi (1,322.71 km) |
| Radviliskis to Peer | 808.11 mi (1,300.53 km) |
| Radviliskis to Pepinster | 815.30 mi (1,312.10 km) |
| Radviliskis to Peruwelz | 900.00 mi (1,448.41 km) |
| Radviliskis to Perwez | 850.17 mi (1,368.21 km) |
| Radviliskis to Philippeville | 875.85 mi (1,409.54 km) |
