| Smethwick to Popovo | 1,438.15 mi (2,314.48 km) |
| Smethwick to Provadia | 1,493.83 mi (2,404.08 km) |
| Smethwick to Radnevo | 1,469.78 mi (2,365.38 km) |
| Smethwick to Radomir | 1,340.39 mi (2,157.15 km) |
| Smethwick to Rakitovo | 1,409.99 mi (2,269.16 km) |
| Smethwick to Rakovski | 1,431.58 mi (2,303.90 km) |
| Smethwick to Razgrad | 1,442.31 mi (2,321.18 km) |
| Smethwick to Razlog | 1,390.25 mi (2,237.39 km) |
| Smethwick to Ruse | 1,407.79 mi (2,265.62 km) |
| Smethwick to Samokov | 1,373.57 mi (2,210.55 km) |
| Smethwick to Sandanski | 1,397.33 mi (2,248.78 km) |
| Smethwick to Sevlievo | 1,406.16 mi (2,262.99 km) |
| Smethwick to Shumen | 1,469.37 mi (2,364.72 km) |
| Smethwick to Silistra | 1,449.88 mi (2,333.36 km) |
| Smethwick to Sliven | 1,469.67 mi (2,365.21 km) |
