| Merchtem to Provadia | 1,209.97 mi (1,947.26 km) |
| Merchtem to Radnevo | 1,184.47 mi (1,906.22 km) |
| Merchtem to Radomir | 1,055.06 mi (1,697.96 km) |
| Merchtem to Rakitovo | 1,124.61 mi (1,809.89 km) |
| Merchtem to Rakovski | 1,146.11 mi (1,844.49 km) |
| Merchtem to Razgrad | 1,158.30 mi (1,864.11 km) |
| Merchtem to Razlog | 1,105.09 mi (1,778.48 km) |
| Merchtem to Ruse | 1,123.79 mi (1,808.57 km) |
| Merchtem to Samokov | 1,088.19 mi (1,751.26 km) |
| Merchtem to Sandanski | 1,112.47 mi (1,790.34 km) |
| Merchtem to Sevlievo | 1,120.98 mi (1,804.04 km) |
| Merchtem to Shumen | 1,185.31 mi (1,907.58 km) |
| Merchtem to Silistra | 1,167.36 mi (1,878.68 km) |
| Merchtem to Sliven | 1,184.71 mi (1,906.61 km) |
| Merchtem to Smolyan | 1,166.72 mi (1,877.66 km) |
