| Cities | Distance |
|---|---|
| Ostwald to Popovo | 956.45 mi (1,539.26 km) |
| Ostwald to Provadia | 1,015.04 mi (1,633.55 km) |
| Ostwald to Radnevo | 980.11 mi (1,577.34 km) |
| Ostwald to Radomir | 843.63 mi (1,357.70 km) |
| Ostwald to Rakitovo | 913.56 mi (1,470.23 km) |
| Ostwald to Rakovski | 938.99 mi (1,511.17 km) |
| Ostwald to Razgrad | 963.03 mi (1,549.85 km) |
| Ostwald to Razlog | 891.93 mi (1,435.43 km) |
| Ostwald to Ruse | 928.86 mi (1,494.85 km) |
| Ostwald to Samokov | 877.39 mi (1,412.02 km) |
| Ostwald to Sandanski | 897.49 mi (1,444.37 km) |
| Ostwald to Sevlievo | 918.40 mi (1,478.02 km) |
| Ostwald to Shumen | 989.60 mi (1,592.61 km) |
| Ostwald to Silistra | 978.32 mi (1,574.46 km) |
| Ostwald to Sliven | 983.62 mi (1,582.98 km) |