| San Giovanni Valdarno to Oerlinghausen | 595.48 mi (958.33 km) |
| San Giovanni Valdarno to Oestrich-Winkel | 474.89 mi (764.27 km) |
| San Giovanni Valdarno to Offenburg | 380.10 mi (611.71 km) |
| San Giovanni Valdarno to Oftersheim | 424.91 mi (683.82 km) |
| San Giovanni Valdarno to Ohrdruf | 503.27 mi (809.93 km) |
| San Giovanni Valdarno to Ohringen | 401.21 mi (645.69 km) |
| San Giovanni Valdarno to Olbernhau | 497.93 mi (801.34 km) |
| San Giovanni Valdarno to Olching | 320.46 mi (515.73 km) |
| San Giovanni Valdarno to Oldenburg | 679.00 mi (1,092.75 km) |
| San Giovanni Valdarno to Oldenburg in Holstein | 742.34 mi (1,194.67 km) |
| San Giovanni Valdarno to Olfen | 595.22 mi (957.92 km) |
| San Giovanni Valdarno to Olpe | 543.13 mi (874.08 km) |
| San Giovanni Valdarno to Olsberg | 556.35 mi (895.35 km) |
| San Giovanni Valdarno to Oranienburg | 639.76 mi (1,029.59 km) |
| San Giovanni Valdarno to Ortenberg | 483.49 mi (778.10 km) |
