| Casciana Terme to Oerlinghausen | 590.01 mi (949.52 km) |
| Casciana Terme to Oestrich-Winkel | 463.95 mi (746.66 km) |
| Casciana Terme to Offenburg | 364.70 mi (586.93 km) |
| Casciana Terme to Oftersheim | 415.09 mi (668.02 km) |
| Casciana Terme to Ohrdruf | 504.41 mi (811.77 km) |
| Casciana Terme to Ohringen | 395.49 mi (636.49 km) |
| Casciana Terme to Olbernhau | 509.39 mi (819.78 km) |
| Casciana Terme to Olching | 324.53 mi (522.29 km) |
| Casciana Terme to Oldenburg | 673.41 mi (1,083.74 km) |
| Casciana Terme to Oldenburg in Holstein | 744.36 mi (1,197.93 km) |
| Casciana Terme to Olfen | 585.35 mi (942.03 km) |
| Casciana Terme to Olpe | 533.54 mi (858.64 km) |
| Casciana Terme to Olsberg | 549.52 mi (884.36 km) |
| Casciana Terme to Oranienburg | 648.68 mi (1,043.96 km) |
| Casciana Terme to Ortenberg | 477.45 mi (768.38 km) |
