| Nivelles to Provadia | 1,198.82 mi (1,929.32 km) |
| Nivelles to Radnevo | 1,171.42 mi (1,885.22 km) |
| Nivelles to Radomir | 1,040.33 mi (1,674.25 km) |
| Nivelles to Rakitovo | 1,110.02 mi (1,786.40 km) |
| Nivelles to Rakovski | 1,132.43 mi (1,822.48 km) |
| Nivelles to Razgrad | 1,147.04 mi (1,845.99 km) |
| Nivelles to Razlog | 1,089.98 mi (1,754.15 km) |
| Nivelles to Ruse | 1,112.56 mi (1,790.50 km) |
| Nivelles to Samokov | 1,073.63 mi (1,727.84 km) |
| Nivelles to Sandanski | 1,096.90 mi (1,765.28 km) |
| Nivelles to Sevlievo | 1,108.25 mi (1,783.55 km) |
| Nivelles to Shumen | 1,174.00 mi (1,889.36 km) |
| Nivelles to Silistra | 1,157.26 mi (1,862.43 km) |
| Nivelles to Sliven | 1,172.34 mi (1,886.69 km) |
| Nivelles to Smolyan | 1,152.11 mi (1,854.14 km) |
