| Heerlerbaan to Noventa Vicentina | 462.27 mi (743.95 km) |
| Heerlerbaan to Novi di Modena | 470.75 mi (757.59 km) |
| Heerlerbaan to Novi Ligure | 441.28 mi (710.17 km) |
| Heerlerbaan to Nuoro | 746.39 mi (1,201.20 km) |
| Heerlerbaan to Occhiobello | 484.94 mi (780.44 km) |
| Heerlerbaan to Oderzo | 460.39 mi (740.93 km) |
| Heerlerbaan to Oggiono | 383.33 mi (616.91 km) |
| Heerlerbaan to Olbia | 707.62 mi (1,138.80 km) |
| Heerlerbaan to Oleggio | 383.49 mi (617.17 km) |
| Heerlerbaan to Olgiate Comasco | 376.65 mi (606.17 km) |
| Heerlerbaan to Olgiate Olona | 385.08 mi (619.72 km) |
| Heerlerbaan to Omegna | 361.92 mi (582.45 km) |
| Heerlerbaan to Opera | 406.76 mi (654.62 km) |
| Heerlerbaan to Oppeano | 452.60 mi (728.38 km) |
| Heerlerbaan to Orbassano | 411.11 mi (661.62 km) |
