| Frederikssund to Novi di Modena | 757.59 mi (1,219.22 km) |
| Frederikssund to Novi Ligure | 778.50 mi (1,252.88 km) |
| Frederikssund to Nuoro | 1,079.28 mi (1,736.93 km) |
| Frederikssund to Occhiobello | 754.22 mi (1,213.81 km) |
| Frederikssund to Oderzo | 694.81 mi (1,118.18 km) |
| Frederikssund to Oggiono | 704.30 mi (1,133.47 km) |
| Frederikssund to Olbia | 1,037.16 mi (1,669.15 km) |
| Frederikssund to Oleggio | 722.60 mi (1,162.91 km) |
| Frederikssund to Olgiate Comasco | 707.27 mi (1,138.24 km) |
| Frederikssund to Olgiate Olona | 718.17 mi (1,155.78 km) |
| Frederikssund to Omegna | 705.86 mi (1,135.97 km) |
| Frederikssund to Opera | 732.60 mi (1,179.00 km) |
| Frederikssund to Oppeano | 728.80 mi (1,172.88 km) |
| Frederikssund to Orbassano | 773.71 mi (1,245.16 km) |
| Frederikssund to Orbetello | 926.22 mi (1,490.60 km) |
