| Horn-Bad Meinberg to Novi di Modena | 490.99 mi (790.18 km) |
| Horn-Bad Meinberg to Novi Ligure | 492.30 mi (792.28 km) |
| Horn-Bad Meinberg to Nuoro | 799.36 mi (1,286.45 km) |
| Horn-Bad Meinberg to Occhiobello | 495.65 mi (797.66 km) |
| Horn-Bad Meinberg to Oderzo | 450.97 mi (725.77 km) |
| Horn-Bad Meinberg to Oggiono | 421.83 mi (678.87 km) |
| Horn-Bad Meinberg to Olbia | 758.14 mi (1,220.11 km) |
| Horn-Bad Meinberg to Oleggio | 434.40 mi (699.10 km) |
| Horn-Bad Meinberg to Olgiate Comasco | 421.47 mi (678.29 km) |
| Horn-Bad Meinberg to Olgiate Olona | 431.85 mi (695.00 km) |
| Horn-Bad Meinberg to Omegna | 415.69 mi (669.00 km) |
| Horn-Bad Meinberg to Opera | 449.25 mi (723.00 km) |
| Horn-Bad Meinberg to Oppeano | 465.95 mi (749.87 km) |
| Horn-Bad Meinberg to Orbassano | 479.56 mi (771.77 km) |
| Horn-Bad Meinberg to Orbetello | 660.90 mi (1,063.61 km) |
