| Cities | Distance |
|---|---|
| Sierpc to Navodari | 717.89 mi (1,155.34 km) |
| Sierpc to Negresti-Oas | 383.83 mi (617.71 km) |
| Sierpc to Nehoiu | 600.09 mi (965.75 km) |
| Sierpc to Ocna Mures | 486.09 mi (782.29 km) |
| Sierpc to Odobesti | 593.31 mi (954.84 km) |
| Sierpc to Odorheiu Secuiesc | 518.96 mi (835.18 km) |
| Sierpc to Oltenita | 685.75 mi (1,103.61 km) |
| Sierpc to Onesti | 556.90 mi (896.24 km) |
| Sierpc to Oradea | 413.76 mi (665.88 km) |
| Sierpc to Orastie | 511.14 mi (822.59 km) |
| Sierpc to Oravita | 549.52 mi (884.37 km) |
| Sierpc to Orsova | 577.07 mi (928.71 km) |
| Sierpc to Otelu Rosu | 523.00 mi (841.69 km) |
| Sierpc to Otopeni | 644.93 mi (1,037.92 km) |
| Sierpc to Ovidiu | 719.55 mi (1,158.00 km) |