| Cities | Distance |
|---|---|
| Erfelek to Popovo | 452.76 mi (728.65 km) |
| Erfelek to Provadia | 391.30 mi (629.74 km) |
| Erfelek to Radnevo | 461.28 mi (742.36 km) |
| Erfelek to Radomir | 613.57 mi (987.44 km) |
| Erfelek to Rakitovo | 556.51 mi (895.62 km) |
| Erfelek to Rakovski | 510.74 mi (821.96 km) |
| Erfelek to Razgrad | 441.23 mi (710.09 km) |
| Erfelek to Razlog | 588.55 mi (947.19 km) |
| Erfelek to Ruse | 473.08 mi (761.34 km) |
| Erfelek to Samokov | 582.76 mi (937.86 km) |
| Erfelek to Sandanski | 599.89 mi (965.43 km) |
| Erfelek to Sevlievo | 505.65 mi (813.76 km) |
| Erfelek to Shumen | 417.32 mi (671.61 km) |
| Erfelek to Silistra | 416.32 mi (670.00 km) |
| Erfelek to Sliven | 442.03 mi (711.38 km) |