| Spring Lake to Popovo | 5,261.29 mi (8,467.24 km) |
| Spring Lake to Provadia | 5,316.88 mi (8,556.70 km) |
| Spring Lake to Radnevo | 5,291.29 mi (8,515.51 km) |
| Spring Lake to Radomir | 5,156.56 mi (8,298.67 km) |
| Spring Lake to Rakitovo | 5,226.49 mi (8,411.22 km) |
| Spring Lake to Rakovski | 5,251.46 mi (8,451.40 km) |
| Spring Lake to Razgrad | 5,265.43 mi (8,473.90 km) |
| Spring Lake to Razlog | 5,204.31 mi (8,375.54 km) |
| Spring Lake to Ruse | 5,230.91 mi (8,418.34 km) |
| Spring Lake to Samokov | 5,190.36 mi (8,353.07 km) |
| Spring Lake to Sandanski | 5,208.77 mi (8,382.71 km) |
| Spring Lake to Sevlievo | 5,228.28 mi (8,414.11 km) |
| Spring Lake to Shumen | 5,292.50 mi (8,517.46 km) |
| Spring Lake to Silistra | 5,271.74 mi (8,484.05 km) |
| Spring Lake to Sliven | 5,292.33 mi (8,517.18 km) |
