| Parkville to Popovo | 4,965.72 mi (7,991.55 km) |
| Parkville to Provadia | 5,020.45 mi (8,079.63 km) |
| Parkville to Radnevo | 4,997.91 mi (8,043.36 km) |
| Parkville to Radomir | 4,865.75 mi (7,830.66 km) |
| Parkville to Rakitovo | 4,935.62 mi (7,943.12 km) |
| Parkville to Rakovski | 4,959.09 mi (7,980.88 km) |
| Parkville to Razgrad | 4,969.26 mi (7,997.26 km) |
| Parkville to Razlog | 4,914.30 mi (7,908.80 km) |
| Parkville to Ruse | 4,934.76 mi (7,941.73 km) |
| Parkville to Samokov | 4,899.35 mi (7,884.73 km) |
| Parkville to Sandanski | 4,919.58 mi (7,917.31 km) |
| Parkville to Sevlievo | 4,934.38 mi (7,941.12 km) |
| Parkville to Shumen | 4,996.37 mi (8,040.89 km) |
| Parkville to Silistra | 4,973.88 mi (8,004.69 km) |
| Parkville to Sliven | 4,997.85 mi (8,043.26 km) |
