| Cities | Distance |
|---|
| Sierpc to Opwijk | 671.50 mi (1,080.67 km) |
| Sierpc to Ostend | 718.98 mi (1,157.09 km) |
| Sierpc to Oud-Heverlee | 654.27 mi (1,052.95 km) |
| Sierpc to Oud-Turnhout | 631.38 mi (1,016.10 km) |
| Sierpc to Oudenaarde | 698.16 mi (1,123.58 km) |
| Sierpc to Oudenburg | 716.43 mi (1,152.98 km) |
| Sierpc to Oupeye | 616.71 mi (992.50 km) |
| Sierpc to Overijse | 660.89 mi (1,063.60 km) |
| Sierpc to Overpelt | 615.26 mi (990.17 km) |
| Sierpc to Paal | 628.94 mi (1,012.18 km) |
| Sierpc to Peer | 615.39 mi (990.37 km) |
| Sierpc to Pepinster | 612.91 mi (986.38 km) |
| Sierpc to Peruwelz | 706.24 mi (1,136.59 km) |
| Sierpc to Perwez | 652.83 mi (1,050.63 km) |
| Sierpc to Philippeville | 674.10 mi (1,084.85 km) |
