| Mercerville to Popovo | 4,852.62 mi (7,809.54 km) |
| Mercerville to Provadia | 4,907.51 mi (7,897.87 km) |
| Mercerville to Radnevo | 4,884.46 mi (7,860.78 km) |
| Mercerville to Radomir | 4,751.94 mi (7,647.51 km) |
| Mercerville to Rakitovo | 4,821.83 mi (7,759.98 km) |
| Mercerville to Rakovski | 4,845.49 mi (7,798.07 km) |
| Mercerville to Razgrad | 4,856.27 mi (7,815.42 km) |
| Mercerville to Razlog | 4,800.40 mi (7,725.49 km) |
| Mercerville to Ruse | 4,821.76 mi (7,759.88 km) |
| Mercerville to Samokov | 4,785.56 mi (7,701.62 km) |
| Mercerville to Sandanski | 4,805.59 mi (7,733.85 km) |
| Mercerville to Sevlievo | 4,821.01 mi (7,758.67 km) |
| Mercerville to Shumen | 4,883.38 mi (7,859.04 km) |
| Mercerville to Silistra | 4,861.21 mi (7,823.36 km) |
| Mercerville to Sliven | 4,884.57 mi (7,860.96 km) |
