| Twinsburg to Popovo | 5,064.30 mi (8,150.21 km) |
| Twinsburg to Provadia | 5,116.87 mi (8,234.81 km) |
| Twinsburg to Radnevo | 5,101.21 mi (8,209.61 km) |
| Twinsburg to Radomir | 4,974.93 mi (8,006.38 km) |
| Twinsburg to Rakitovo | 5,044.43 mi (8,118.22 km) |
| Twinsburg to Rakovski | 5,064.69 mi (8,150.83 km) |
| Twinsburg to Razgrad | 5,066.49 mi (8,153.73 km) |
| Twinsburg to Razlog | 5,024.90 mi (8,086.79 km) |
| Twinsburg to Ruse | 5,032.16 mi (8,098.48 km) |
| Twinsburg to Samokov | 5,007.99 mi (8,059.58 km) |
| Twinsburg to Sandanski | 5,031.82 mi (8,097.93 km) |
| Twinsburg to Sevlievo | 5,036.80 mi (8,105.95 km) |
| Twinsburg to Shumen | 5,093.59 mi (8,197.34 km) |
| Twinsburg to Silistra | 5,067.13 mi (8,154.76 km) |
| Twinsburg to Sliven | 5,098.75 mi (8,205.65 km) |
