| Boekel to Popovo | 1,111.20 mi (1,788.31 km) |
| Boekel to Provadia | 1,165.99 mi (1,876.48 km) |
| Boekel to Radnevo | 1,145.69 mi (1,843.81 km) |
| Boekel to Radomir | 1,021.55 mi (1,644.02 km) |
| Boekel to Rakitovo | 1,090.48 mi (1,754.96 km) |
| Boekel to Rakovski | 1,109.21 mi (1,785.10 km) |
| Boekel to Razgrad | 1,114.72 mi (1,793.97 km) |
| Boekel to Razlog | 1,072.63 mi (1,726.23 km) |
| Boekel to Ruse | 1,080.21 mi (1,738.43 km) |
| Boekel to Samokov | 1,054.05 mi (1,696.32 km) |
| Boekel to Sandanski | 1,081.43 mi (1,740.40 km) |
| Boekel to Sevlievo | 1,081.45 mi (1,740.42 km) |
| Boekel to Shumen | 1,141.82 mi (1,837.59 km) |
| Boekel to Silistra | 1,120.83 mi (1,803.80 km) |
| Boekel to Sliven | 1,144.05 mi (1,841.17 km) |
