| Tirebolu to Oerlinghausen | 1,605.78 mi (2,584.26 km) |
| Tirebolu to Oestrich-Winkel | 1,602.15 mi (2,578.42 km) |
| Tirebolu to Offenburg | 1,588.31 mi (2,556.14 km) |
| Tirebolu to Oftersheim | 1,568.52 mi (2,524.29 km) |
| Tirebolu to Ohrdruf | 1,498.42 mi (2,411.47 km) |
| Tirebolu to Ohringen | 1,525.82 mi (2,455.57 km) |
| Tirebolu to Olbernhau | 1,386.61 mi (2,231.53 km) |
| Tirebolu to Olching | 1,431.91 mi (2,304.44 km) |
| Tirebolu to Oldenburg | 1,647.97 mi (2,652.15 km) |
| Tirebolu to Oldenburg in Holstein | 1,575.00 mi (2,534.71 km) |
| Tirebolu to Olfen | 1,654.16 mi (2,662.12 km) |
| Tirebolu to Olpe | 1,623.93 mi (2,613.46 km) |
| Tirebolu to Olsberg | 1,602.09 mi (2,578.31 km) |
| Tirebolu to Oranienburg | 1,443.18 mi (2,322.58 km) |
| Tirebolu to Ortenberg | 1,561.54 mi (2,513.06 km) |
