| Bad Nenndorf to Popovo | 994.08 mi (1,599.81 km) |
| Bad Nenndorf to Provadia | 1,045.51 mi (1,682.58 km) |
| Bad Nenndorf to Radnevo | 1,035.84 mi (1,667.02 km) |
| Bad Nenndorf to Radomir | 924.10 mi (1,487.19 km) |
| Bad Nenndorf to Rakitovo | 990.83 mi (1,594.59 km) |
| Bad Nenndorf to Rakovski | 1,003.60 mi (1,615.13 km) |
| Bad Nenndorf to Razgrad | 995.48 mi (1,602.07 km) |
| Bad Nenndorf to Razlog | 976.69 mi (1,571.83 km) |
| Bad Nenndorf to Ruse | 961.30 mi (1,547.07 km) |
| Bad Nenndorf to Samokov | 954.84 mi (1,536.66 km) |
| Bad Nenndorf to Sandanski | 988.36 mi (1,590.61 km) |
| Bad Nenndorf to Sevlievo | 970.74 mi (1,562.25 km) |
| Bad Nenndorf to Shumen | 1,022.53 mi (1,645.60 km) |
| Bad Nenndorf to Silistra | 995.70 mi (1,602.42 km) |
| Bad Nenndorf to Sliven | 1,030.40 mi (1,658.27 km) |
