| Niel to Provadia | 1,208.97 mi (1,945.65 km) |
| Niel to Radnevo | 1,184.37 mi (1,906.06 km) |
| Niel to Radomir | 1,055.80 mi (1,699.15 km) |
| Niel to Rakitovo | 1,125.27 mi (1,810.94 km) |
| Niel to Rakovski | 1,146.32 mi (1,844.82 km) |
| Niel to Razgrad | 1,157.36 mi (1,862.59 km) |
| Niel to Razlog | 1,106.01 mi (1,779.96 km) |
| Niel to Ruse | 1,122.84 mi (1,807.04 km) |
| Niel to Samokov | 1,088.83 mi (1,752.30 km) |
| Niel to Sandanski | 1,113.62 mi (1,792.20 km) |
| Niel to Sevlievo | 1,120.73 mi (1,803.64 km) |
| Niel to Shumen | 1,184.39 mi (1,906.10 km) |
| Niel to Silistra | 1,165.89 mi (1,876.32 km) |
| Niel to Sliven | 1,184.29 mi (1,905.92 km) |
| Niel to Smolyan | 1,167.38 mi (1,878.71 km) |
