| Black Forest to Noventa Vicentina | 5,395.01 mi (8,682.42 km) |
| Black Forest to Novi di Modena | 5,391.85 mi (8,677.34 km) |
| Black Forest to Novi Ligure | 5,323.25 mi (8,566.94 km) |
| Black Forest to Nuoro | 5,554.88 mi (8,939.72 km) |
| Black Forest to Occhiobello | 5,414.23 mi (8,713.36 km) |
| Black Forest to Oderzo | 5,403.68 mi (8,696.38 km) |
| Black Forest to Oggiono | 5,294.92 mi (8,521.34 km) |
| Black Forest to Olbia | 5,532.37 mi (8,903.49 km) |
| Black Forest to Oleggio | 5,278.26 mi (8,494.53 km) |
| Black Forest to Olgiate Comasco | 5,281.43 mi (8,499.64 km) |
| Black Forest to Olgiate Olona | 5,285.55 mi (8,506.26 km) |
| Black Forest to Omegna | 5,257.20 mi (8,460.65 km) |
| Black Forest to Opera | 5,309.13 mi (8,544.23 km) |
| Black Forest to Oppeano | 5,382.06 mi (8,661.59 km) |
| Black Forest to Orbassano | 5,266.67 mi (8,475.89 km) |
