| Gunzenhausen to Oria | 683.43 mi (1,099.88 km) |
| Gunzenhausen to Oristano | 645.06 mi (1,038.12 km) |
| Gunzenhausen to Orta Nova | 589.12 mi (948.10 km) |
| Gunzenhausen to Orte | 466.42 mi (750.63 km) |
| Gunzenhausen to Ortona | 499.22 mi (803.42 km) |
| Gunzenhausen to Orvieto | 446.71 mi (718.91 km) |
| Gunzenhausen to Orzinuovi | 259.53 mi (417.67 km) |
| Gunzenhausen to Osimo | 410.25 mi (660.23 km) |
| Gunzenhausen to Ospitaletto | 247.99 mi (399.09 km) |
| Gunzenhausen to Ostuni | 667.91 mi (1,074.90 km) |
| Gunzenhausen to Ottaviano | 599.13 mi (964.21 km) |
| Gunzenhausen to Ovada | 324.82 mi (522.75 km) |
| Gunzenhausen to Ozieri | 595.51 mi (958.39 km) |
| Gunzenhausen to Paceco | 774.28 mi (1,246.09 km) |
| Gunzenhausen to Pachino | 884.00 mi (1,422.67 km) |
