| Mack to Popovo | 5,291.13 mi (8,515.25 km) |
| Mack to Provadia | 5,343.58 mi (8,599.66 km) |
| Mack to Radnevo | 5,328.23 mi (8,574.96 km) |
| Mack to Radomir | 5,202.10 mi (8,371.98 km) |
| Mack to Rakitovo | 5,271.59 mi (8,483.80 km) |
| Mack to Rakovski | 5,291.78 mi (8,516.29 km) |
| Mack to Razgrad | 5,293.25 mi (8,518.66 km) |
| Mack to Razlog | 5,252.09 mi (8,452.42 km) |
| Mack to Ruse | 5,258.94 mi (8,463.44 km) |
| Mack to Samokov | 5,235.15 mi (8,425.16 km) |
| Mack to Sandanski | 5,259.03 mi (8,463.58 km) |
| Mack to Sevlievo | 5,263.79 mi (8,471.26 km) |
| Mack to Shumen | 5,320.34 mi (8,562.26 km) |
| Mack to Silistra | 5,293.66 mi (8,519.32 km) |
| Mack to Sliven | 5,325.68 mi (8,570.85 km) |
