| Mount Holly to Popovo | 5,336.48 mi (8,588.24 km) |
| Mount Holly to Provadia | 5,391.47 mi (8,676.74 km) |
| Mount Holly to Radnevo | 5,367.96 mi (8,638.89 km) |
| Mount Holly to Radomir | 5,234.84 mi (8,424.65 km) |
| Mount Holly to Rakitovo | 5,304.74 mi (8,537.16 km) |
| Mount Holly to Rakovski | 5,328.78 mi (8,575.83 km) |
| Mount Holly to Razgrad | 5,340.21 mi (8,594.23 km) |
| Mount Holly to Razlog | 5,283.08 mi (8,502.30 km) |
| Mount Holly to Ruse | 5,305.69 mi (8,538.69 km) |
| Mount Holly to Samokov | 5,268.52 mi (8,478.86 km) |
| Mount Holly to Sandanski | 5,288.04 mi (8,510.27 km) |
| Mount Holly to Sevlievo | 5,304.60 mi (8,536.93 km) |
| Mount Holly to Shumen | 5,367.31 mi (8,637.84 km) |
| Mount Holly to Silistra | 5,345.29 mi (8,602.42 km) |
| Mount Holly to Sliven | 5,368.27 mi (8,639.39 km) |
