| Pikesville to Popovo | 4,971.42 mi (8,000.72 km) |
| Pikesville to Provadia | 5,026.10 mi (8,088.73 km) |
| Pikesville to Radnevo | 5,003.71 mi (8,052.69 km) |
| Pikesville to Radomir | 4,871.66 mi (7,840.17 km) |
| Pikesville to Rakitovo | 4,941.53 mi (7,952.62 km) |
| Pikesville to Rakovski | 4,964.93 mi (7,990.28 km) |
| Pikesville to Razgrad | 4,974.93 mi (8,006.38 km) |
| Pikesville to Razlog | 4,920.24 mi (7,918.36 km) |
| Pikesville to Ruse | 4,940.43 mi (7,950.86 km) |
| Pikesville to Samokov | 4,905.25 mi (7,894.23 km) |
| Pikesville to Sandanski | 4,925.56 mi (7,926.92 km) |
| Pikesville to Sevlievo | 4,940.16 mi (7,950.42 km) |
| Pikesville to Shumen | 5,002.04 mi (8,050.01 km) |
| Pikesville to Silistra | 4,979.47 mi (8,013.68 km) |
| Pikesville to Sliven | 5,003.59 mi (8,052.51 km) |
