| Knokke-Heist to Provadia | 1,256.82 mi (2,022.65 km) |
| Knokke-Heist to Radnevo | 1,232.16 mi (1,982.97 km) |
| Knokke-Heist to Radomir | 1,103.27 mi (1,775.54 km) |
| Knokke-Heist to Rakitovo | 1,172.78 mi (1,887.41 km) |
| Knokke-Heist to Rakovski | 1,194.02 mi (1,921.59 km) |
| Knokke-Heist to Razgrad | 1,205.21 mi (1,939.60 km) |
| Knokke-Heist to Razlog | 1,153.38 mi (1,856.19 km) |
| Knokke-Heist to Ruse | 1,170.70 mi (1,884.05 km) |
| Knokke-Heist to Samokov | 1,136.35 mi (1,828.77 km) |
| Knokke-Heist to Sandanski | 1,160.84 mi (1,868.19 km) |
| Knokke-Heist to Sevlievo | 1,168.55 mi (1,880.60 km) |
| Knokke-Heist to Shumen | 1,232.25 mi (1,983.11 km) |
| Knokke-Heist to Silistra | 1,213.65 mi (1,953.18 km) |
| Knokke-Heist to Sliven | 1,232.13 mi (1,982.92 km) |
| Knokke-Heist to Smolyan | 1,214.89 mi (1,955.18 km) |
