| Gunbarrel to Popovo | 5,926.18 mi (9,537.26 km) |
| Gunbarrel to Provadia | 5,970.06 mi (9,607.88 km) |
| Gunbarrel to Radnevo | 5,976.68 mi (9,618.54 km) |
| Gunbarrel to Radomir | 5,872.80 mi (9,451.36 km) |
| Gunbarrel to Rakitovo | 5,938.87 mi (9,557.69 km) |
| Gunbarrel to Rakovski | 5,948.54 mi (9,573.25 km) |
| Gunbarrel to Razgrad | 5,923.98 mi (9,533.72 km) |
| Gunbarrel to Razlog | 5,925.50 mi (9,536.17 km) |
| Gunbarrel to Ruse | 5,891.41 mi (9,481.31 km) |
| Gunbarrel to Samokov | 5,903.12 mi (9,500.16 km) |
| Gunbarrel to Sandanski | 5,937.22 mi (9,555.03 km) |
| Gunbarrel to Sevlievo | 5,911.67 mi (9,513.91 km) |
| Gunbarrel to Shumen | 5,950.10 mi (9,575.76 km) |
| Gunbarrel to Silistra | 5,911.96 mi (9,514.37 km) |
| Gunbarrel to Sliven | 5,966.77 mi (9,602.59 km) |
