| Tromsdalen to Oerlinghausen | 1,265.92 mi (2,037.30 km) |
| Tromsdalen to Oestrich-Winkel | 1,404.85 mi (2,260.89 km) |
| Tromsdalen to Offenburg | 1,509.52 mi (2,429.33 km) |
| Tromsdalen to Oftersheim | 1,442.80 mi (2,321.96 km) |
| Tromsdalen to Ohrdruf | 1,327.80 mi (2,136.89 km) |
| Tromsdalen to Ohringen | 1,447.47 mi (2,329.47 km) |
| Tromsdalen to Olbernhau | 1,324.27 mi (2,131.20 km) |
| Tromsdalen to Olching | 1,504.02 mi (2,420.49 km) |
| Tromsdalen to Oldenburg | 1,190.35 mi (1,915.69 km) |
| Tromsdalen to Oldenburg in Holstein | 1,090.18 mi (1,754.48 km) |
| Tromsdalen to Olfen | 1,294.23 mi (2,082.86 km) |
| Tromsdalen to Olpe | 1,337.42 mi (2,152.38 km) |
| Tromsdalen to Olsberg | 1,309.24 mi (2,107.03 km) |
| Tromsdalen to Oranienburg | 1,181.38 mi (1,901.25 km) |
| Tromsdalen to Ortenberg | 1,372.10 mi (2,208.18 km) |
