| Ramnicu Sarat to Oerlinghausen | 950.89 mi (1,530.30 km) |
| Ramnicu Sarat to Oestrich-Winkel | 939.04 mi (1,511.23 km) |
| Ramnicu Sarat to Offenburg | 924.77 mi (1,488.27 km) |
| Ramnicu Sarat to Oftersheim | 904.66 mi (1,455.91 km) |
| Ramnicu Sarat to Ohrdruf | 839.67 mi (1,351.31 km) |
| Ramnicu Sarat to Ohringen | 861.92 mi (1,387.13 km) |
| Ramnicu Sarat to Olbernhau | 730.34 mi (1,175.37 km) |
| Ramnicu Sarat to Olching | 768.30 mi (1,236.45 km) |
| Ramnicu Sarat to Oldenburg | 1,000.28 mi (1,609.80 km) |
| Ramnicu Sarat to Oldenburg in Holstein | 944.43 mi (1,519.91 km) |
| Ramnicu Sarat to Olfen | 996.59 mi (1,603.86 km) |
| Ramnicu Sarat to Olpe | 963.66 mi (1,550.86 km) |
| Ramnicu Sarat to Olsberg | 943.72 mi (1,518.77 km) |
| Ramnicu Sarat to Oranienburg | 804.60 mi (1,294.88 km) |
| Ramnicu Sarat to Ortenberg | 899.69 mi (1,447.90 km) |
