| Cities | Distance |
|---|---|
| Koper to Popovo | 634.27 mi (1,020.76 km) |
| Koper to Provadia | 695.22 mi (1,118.85 km) |
| Koper to Radnevo | 646.51 mi (1,040.46 km) |
| Koper to Radomir | 502.05 mi (807.97 km) |
| Koper to Rakitovo | 571.63 mi (919.95 km) |
| Koper to Rakovski | 602.07 mi (968.93 km) |
| Koper to Razgrad | 644.01 mi (1,036.43 km) |
| Koper to Razlog | 547.61 mi (881.29 km) |
| Koper to Ruse | 611.41 mi (983.97 km) |
| Koper to Samokov | 536.22 mi (862.96 km) |
| Koper to Sandanski | 551.08 mi (886.88 km) |
| Koper to Sevlievo | 588.66 mi (947.36 km) |
| Koper to Shumen | 669.15 mi (1,076.89 km) |
| Koper to Silistra | 669.34 mi (1,077.19 km) |
| Koper to Sliven | 654.82 mi (1,053.83 km) |