| Merzig to Popovo | 1,021.39 mi (1,643.77 km) |
| Merzig to Provadia | 1,079.06 mi (1,736.58 km) |
| Merzig to Radnevo | 1,048.13 mi (1,686.80 km) |
| Merzig to Radomir | 914.63 mi (1,471.96 km) |
| Merzig to Rakitovo | 984.45 mi (1,584.33 km) |
| Merzig to Rakovski | 1,008.17 mi (1,622.49 km) |
| Merzig to Razgrad | 1,027.12 mi (1,652.99 km) |
| Merzig to Razlog | 963.76 mi (1,551.02 km) |
| Merzig to Ruse | 992.75 mi (1,597.67 km) |
| Merzig to Samokov | 948.13 mi (1,525.87 km) |
| Merzig to Sandanski | 970.15 mi (1,561.30 km) |
| Merzig to Sevlievo | 985.57 mi (1,586.12 km) |
| Merzig to Shumen | 1,053.92 mi (1,696.12 km) |
| Merzig to Silistra | 1,039.80 mi (1,673.40 km) |
| Merzig to Sliven | 1,050.23 mi (1,690.18 km) |
