| Gloucester to Popovo | 1,439.15 mi (2,316.09 km) |
| Gloucester to Provadia | 1,495.62 mi (2,406.97 km) |
| Gloucester to Radnevo | 1,468.65 mi (2,363.56 km) |
| Gloucester to Radomir | 1,336.65 mi (2,151.13 km) |
| Gloucester to Rakitovo | 1,406.44 mi (2,263.44 km) |
| Gloucester to Rakovski | 1,429.47 mi (2,300.50 km) |
| Gloucester to Razgrad | 1,443.91 mi (2,323.74 km) |
| Gloucester to Razlog | 1,385.87 mi (2,230.34 km) |
| Gloucester to Ruse | 1,409.41 mi (2,268.22 km) |
| Gloucester to Samokov | 1,370.09 mi (2,204.95 km) |
| Gloucester to Sandanski | 1,392.19 mi (2,240.52 km) |
| Gloucester to Sevlievo | 1,405.51 mi (2,261.95 km) |
| Gloucester to Shumen | 1,470.89 mi (2,367.17 km) |
| Gloucester to Silistra | 1,453.19 mi (2,338.69 km) |
| Gloucester to Sliven | 1,469.59 mi (2,365.07 km) |
