| Cities | Distance |
|---|
| Sierpc to Popovo | 724.27 mi (1,165.59 km) |
| Sierpc to Provadia | 759.20 mi (1,221.81 km) |
| Sierpc to Radnevo | 786.64 mi (1,265.98 km) |
| Sierpc to Radomir | 729.89 mi (1,174.65 km) |
| Sierpc to Rakitovo | 780.51 mi (1,256.11 km) |
| Sierpc to Rakovski | 772.03 mi (1,242.46 km) |
| Sierpc to Razgrad | 718.13 mi (1,155.72 km) |
| Sierpc to Razlog | 780.25 mi (1,255.70 km) |
| Sierpc to Ruse | 688.72 mi (1,108.38 km) |
| Sierpc to Samokov | 750.56 mi (1,207.91 km) |
| Sierpc to Sandanski | 799.73 mi (1,287.05 km) |
| Sierpc to Sevlievo | 725.71 mi (1,167.92 km) |
| Sierpc to Shumen | 742.38 mi (1,194.75 km) |
| Sierpc to Silistra | 697.48 mi (1,122.49 km) |
| Sierpc to Sliven | 768.92 mi (1,237.45 km) |
