| New Cassel to Popovo | 4,784.05 mi (7,699.18 km) |
| New Cassel to Provadia | 4,839.02 mi (7,787.64 km) |
| New Cassel to Radnevo | 4,815.71 mi (7,750.13 km) |
| New Cassel to Radomir | 4,683.00 mi (7,536.56 km) |
| New Cassel to Rakitovo | 4,752.90 mi (7,649.05 km) |
| New Cassel to Rakovski | 4,776.66 mi (7,687.30 km) |
| New Cassel to Razgrad | 4,787.75 mi (7,705.14 km) |
| New Cassel to Razlog | 4,731.41 mi (7,614.47 km) |
| New Cassel to Ruse | 4,753.24 mi (7,649.60 km) |
| New Cassel to Samokov | 4,716.64 mi (7,590.70 km) |
| New Cassel to Sandanski | 4,736.56 mi (7,622.76 km) |
| New Cassel to Sevlievo | 4,752.29 mi (7,648.08 km) |
| New Cassel to Shumen | 4,814.85 mi (7,748.76 km) |
| New Cassel to Silistra | 4,792.86 mi (7,713.36 km) |
| New Cassel to Sliven | 4,815.90 mi (7,750.44 km) |
