| Forest Lake to Popovo | 5,267.63 mi (8,477.43 km) |
| Forest Lake to Provadia | 5,314.51 mi (8,552.88 km) |
| Forest Lake to Radnevo | 5,314.19 mi (8,552.36 km) |
| Forest Lake to Radomir | 5,203.02 mi (8,373.45 km) |
| Forest Lake to Rakitovo | 5,270.44 mi (8,481.95 km) |
| Forest Lake to Rakovski | 5,283.33 mi (8,502.71 km) |
| Forest Lake to Razgrad | 5,266.80 mi (8,476.09 km) |
| Forest Lake to Razlog | 5,255.18 mi (8,457.40 km) |
| Forest Lake to Ruse | 5,233.49 mi (8,422.49 km) |
| Forest Lake to Samokov | 5,234.30 mi (8,423.80 km) |
| Forest Lake to Sandanski | 5,265.56 mi (8,474.10 km) |
| Forest Lake to Sevlievo | 5,249.00 mi (8,447.46 km) |
| Forest Lake to Shumen | 5,293.38 mi (8,518.87 km) |
| Forest Lake to Silistra | 5,258.75 mi (8,463.13 km) |
| Forest Lake to Sliven | 5,306.53 mi (8,540.04 km) |
