| Katwijk to Popovo | 1,176.36 mi (1,893.17 km) |
| Katwijk to Provadia | 1,230.70 mi (1,980.62 km) |
| Katwijk to Radnevo | 1,211.75 mi (1,950.13 km) |
| Katwijk to Radomir | 1,088.53 mi (1,751.82 km) |
| Katwijk to Rakitovo | 1,157.37 mi (1,862.60 km) |
| Katwijk to Rakovski | 1,175.66 mi (1,892.04 km) |
| Katwijk to Razgrad | 1,179.58 mi (1,898.35 km) |
| Katwijk to Razlog | 1,139.72 mi (1,834.21 km) |
| Katwijk to Ruse | 1,145.09 mi (1,842.85 km) |
| Katwijk to Samokov | 1,120.94 mi (1,803.98 km) |
| Katwijk to Sandanski | 1,148.66 mi (1,848.59 km) |
| Katwijk to Sevlievo | 1,147.38 mi (1,846.52 km) |
| Katwijk to Shumen | 1,206.70 mi (1,941.99 km) |
| Katwijk to Silistra | 1,184.71 mi (1,906.61 km) |
| Katwijk to Sliven | 1,209.69 mi (1,946.80 km) |
