| Alfeld to Popovo | 965.24 mi (1,553.41 km) |
| Alfeld to Provadia | 1,017.04 mi (1,636.77 km) |
| Alfeld to Radnevo | 1,006.41 mi (1,619.66 km) |
| Alfeld to Radomir | 893.91 mi (1,438.60 km) |
| Alfeld to Rakitovo | 960.76 mi (1,546.20 km) |
| Alfeld to Rakovski | 973.87 mi (1,567.29 km) |
| Alfeld to Razgrad | 966.85 mi (1,556.00 km) |
| Alfeld to Razlog | 946.45 mi (1,523.17 km) |
| Alfeld to Ruse | 932.62 mi (1,500.91 km) |
| Alfeld to Samokov | 924.74 mi (1,488.22 km) |
| Alfeld to Sandanski | 958.02 mi (1,541.79 km) |
| Alfeld to Sevlievo | 941.35 mi (1,514.95 km) |
| Alfeld to Shumen | 993.92 mi (1,599.56 km) |
| Alfeld to Silistra | 967.74 mi (1,557.42 km) |
| Alfeld to Sliven | 1,001.27 mi (1,611.39 km) |
