| Gross-Zimmern to Novi di Modena | 357.32 mi (575.05 km) |
| Gross-Zimmern to Novi Ligure | 353.31 mi (568.60 km) |
| Gross-Zimmern to Nuoro | 660.69 mi (1,063.28 km) |
| Gross-Zimmern to Occhiobello | 365.34 mi (587.96 km) |
| Gross-Zimmern to Oderzo | 329.65 mi (530.52 km) |
| Gross-Zimmern to Oggiono | 283.55 mi (456.33 km) |
| Gross-Zimmern to Olbia | 619.63 mi (997.20 km) |
| Gross-Zimmern to Oleggio | 295.36 mi (475.33 km) |
| Gross-Zimmern to Olgiate Comasco | 282.61 mi (454.82 km) |
| Gross-Zimmern to Olgiate Olona | 292.92 mi (471.40 km) |
| Gross-Zimmern to Omegna | 276.70 mi (445.31 km) |
| Gross-Zimmern to Opera | 310.69 mi (500.01 km) |
| Gross-Zimmern to Oppeano | 334.32 mi (538.03 km) |
| Gross-Zimmern to Orbassano | 341.57 mi (549.70 km) |
| Gross-Zimmern to Orbetello | 525.97 mi (846.47 km) |
