| Richterich to Popovo | 1,075.00 mi (1,730.04 km) |
| Richterich to Provadia | 1,130.87 mi (1,819.96 km) |
| Richterich to Radnevo | 1,106.86 mi (1,781.32 km) |
| Richterich to Radomir | 979.35 mi (1,576.11 km) |
| Richterich to Rakitovo | 1,048.68 mi (1,687.70 km) |
| Richterich to Rakovski | 1,069.14 mi (1,720.61 km) |
| Richterich to Razgrad | 1,079.28 mi (1,736.94 km) |
| Richterich to Razlog | 1,029.85 mi (1,657.38 km) |
| Richterich to Ruse | 1,044.76 mi (1,681.39 km) |
| Richterich to Samokov | 1,012.24 mi (1,629.04 km) |
| Richterich to Sandanski | 1,037.84 mi (1,670.25 km) |
| Richterich to Sevlievo | 1,043.10 mi (1,678.71 km) |
| Richterich to Shumen | 1,106.32 mi (1,780.46 km) |
| Richterich to Silistra | 1,087.69 mi (1,750.47 km) |
| Richterich to Sliven | 1,106.51 mi (1,780.75 km) |
