| Big Lake to Popovo | 5,287.84 mi (8,509.95 km) |
| Big Lake to Provadia | 5,334.38 mi (8,584.85 km) |
| Big Lake to Radnevo | 5,334.89 mi (8,585.67 km) |
| Big Lake to Radomir | 5,224.61 mi (8,408.19 km) |
| Big Lake to Rakitovo | 5,291.87 mi (8,516.44 km) |
| Big Lake to Rakovski | 5,304.36 mi (8,536.54 km) |
| Big Lake to Razgrad | 5,286.84 mi (8,508.35 km) |
| Big Lake to Razlog | 5,276.85 mi (8,492.27 km) |
| Big Lake to Ruse | 5,253.61 mi (8,454.87 km) |
| Big Lake to Samokov | 5,255.77 mi (8,458.35 km) |
| Big Lake to Sandanski | 5,287.40 mi (8,509.25 km) |
| Big Lake to Sevlievo | 5,269.71 mi (8,480.77 km) |
| Big Lake to Shumen | 5,313.38 mi (8,551.05 km) |
| Big Lake to Silistra | 5,278.32 mi (8,494.64 km) |
| Big Lake to Sliven | 5,326.95 mi (8,572.90 km) |
