| Piera to Popovo | 1,250.35 mi (2,012.24 km) |
| Piera to Provadia | 1,311.28 mi (2,110.30 km) |
| Piera to Radnevo | 1,240.46 mi (1,996.33 km) |
| Piera to Radomir | 1,087.42 mi (1,750.04 km) |
| Piera to Rakitovo | 1,148.38 mi (1,848.14 km) |
| Piera to Rakovski | 1,191.31 mi (1,917.22 km) |
| Piera to Razgrad | 1,264.01 mi (2,034.23 km) |
| Piera to Razlog | 1,117.58 mi (1,798.57 km) |
| Piera to Ruse | 1,235.33 mi (1,988.07 km) |
| Piera to Samokov | 1,119.24 mi (1,801.24 km) |
| Piera to Sandanski | 1,110.60 mi (1,787.35 km) |
| Piera to Sevlievo | 1,195.10 mi (1,923.33 km) |
| Piera to Shumen | 1,285.73 mi (2,069.18 km) |
| Piera to Silistra | 1,299.95 mi (2,092.06 km) |
| Piera to Sliven | 1,258.35 mi (2,025.12 km) |
