| Willebroek to Ottendorf-Okrilla | 410.01 mi (659.85 km) |
| Willebroek to Ottersberg | 246.87 mi (397.29 km) |
| Willebroek to Ottobrunn | 386.99 mi (622.81 km) |
| Willebroek to Ottweiler | 170.63 mi (274.60 km) |
| Willebroek to Overath | 127.77 mi (205.62 km) |
| Willebroek to Oyten | 240.80 mi (387.53 km) |
| Willebroek to Paderborn | 194.41 mi (312.87 km) |
| Willebroek to Papenburg | 188.90 mi (304.00 km) |
| Willebroek to Parchim | 354.94 mi (571.22 km) |
| Willebroek to Pasewalk | 440.08 mi (708.24 km) |
| Willebroek to Passau | 440.23 mi (708.48 km) |
| Willebroek to Pattensen | 245.74 mi (395.49 km) |
| Willebroek to Pegnitz | 328.62 mi (528.87 km) |
| Willebroek to Peine | 265.69 mi (427.59 km) |
| Willebroek to Peissenberg | 376.01 mi (605.13 km) |
