| Norrtalje to Orbetello | 1,238.62 mi (1,993.37 km) |
| Norrtalje to Oria | 1,332.00 mi (2,143.64 km) |
| Norrtalje to Oristano | 1,440.49 mi (2,318.25 km) |
| Norrtalje to Orta Nova | 1,280.22 mi (2,060.31 km) |
| Norrtalje to Orte | 1,225.39 mi (1,972.07 km) |
| Norrtalje to Ortona | 1,217.15 mi (1,958.82 km) |
| Norrtalje to Orvieto | 1,210.50 mi (1,948.10 km) |
| Norrtalje to Orzinuovi | 1,056.53 mi (1,700.33 km) |
| Norrtalje to Osimo | 1,146.25 mi (1,844.70 km) |
| Norrtalje to Ospitaletto | 1,044.30 mi (1,680.63 km) |
| Norrtalje to Ostuni | 1,315.96 mi (2,117.83 km) |
| Norrtalje to Ottaviano | 1,319.58 mi (2,123.66 km) |
| Norrtalje to Ovada | 1,125.65 mi (1,811.55 km) |
| Norrtalje to Ozieri | 1,389.66 mi (2,236.44 km) |
| Norrtalje to Paceco | 1,529.27 mi (2,461.12 km) |
