| Cities | Distance |
|---|
| Olbia to Popovo | 872.15 mi (1,403.59 km) |
| Olbia to Provadia | 931.45 mi (1,499.02 km) |
| Olbia to Radnevo | 852.98 mi (1,372.73 km) |
| Olbia to Radomir | 701.84 mi (1,129.50 km) |
| Olbia to Rakitovo | 757.90 mi (1,219.71 km) |
| Olbia to Rakovski | 803.51 mi (1,293.12 km) |
| Olbia to Razgrad | 887.54 mi (1,428.36 km) |
| Olbia to Razlog | 726.12 mi (1,168.58 km) |
| Olbia to Ruse | 862.00 mi (1,387.26 km) |
| Olbia to Samokov | 731.65 mi (1,177.48 km) |
| Olbia to Sandanski | 716.68 mi (1,153.39 km) |
| Olbia to Sevlievo | 813.93 mi (1,309.89 km) |
| Olbia to Shumen | 906.82 mi (1,459.38 km) |
| Olbia to Silistra | 929.12 mi (1,495.27 km) |
| Olbia to Sliven | 874.10 mi (1,406.72 km) |
