| Tromso to Oerlinghausen | 1,267.94 mi (2,040.56 km) |
| Tromso to Oestrich-Winkel | 1,406.87 mi (2,264.14 km) |
| Tromso to Offenburg | 1,511.56 mi (2,432.63 km) |
| Tromso to Oftersheim | 1,444.87 mi (2,325.30 km) |
| Tromso to Ohrdruf | 1,329.99 mi (2,140.42 km) |
| Tromso to Ohringen | 1,449.60 mi (2,332.91 km) |
| Tromso to Olbernhau | 1,326.63 mi (2,135.00 km) |
| Tromso to Olching | 1,506.29 mi (2,424.14 km) |
| Tromso to Oldenburg | 1,192.31 mi (1,918.84 km) |
| Tromso to Oldenburg in Holstein | 1,092.32 mi (1,757.91 km) |
| Tromso to Olfen | 1,296.17 mi (2,085.98 km) |
| Tromso to Olpe | 1,339.41 mi (2,155.57 km) |
| Tromso to Olsberg | 1,311.27 mi (2,110.28 km) |
| Tromso to Oranienburg | 1,183.71 mi (1,905.00 km) |
| Tromso to Ortenberg | 1,374.18 mi (2,211.53 km) |
