| Viersen to Popovo | 1,072.98 mi (1,726.80 km) |
| Viersen to Provadia | 1,128.03 mi (1,815.38 km) |
| Viersen to Radnevo | 1,106.96 mi (1,781.47 km) |
| Viersen to Radomir | 982.33 mi (1,580.90 km) |
| Viersen to Rakitovo | 1,051.31 mi (1,691.92 km) |
| Viersen to Rakovski | 1,070.27 mi (1,722.43 km) |
| Viersen to Razgrad | 1,076.68 mi (1,732.74 km) |
| Viersen to Razlog | 1,033.36 mi (1,663.02 km) |
| Viersen to Ruse | 1,042.16 mi (1,677.19 km) |
| Viersen to Samokov | 1,014.87 mi (1,633.27 km) |
| Viersen to Sandanski | 1,042.09 mi (1,677.08 km) |
| Viersen to Sevlievo | 1,042.79 mi (1,678.21 km) |
| Viersen to Shumen | 1,103.77 mi (1,776.35 km) |
| Viersen to Silistra | 1,083.36 mi (1,743.49 km) |
| Viersen to Sliven | 1,105.56 mi (1,779.22 km) |
