| Cities | Distance |
|---|---|
| Kalkar to Opwijk | 105.49 mi (169.77 km) |
| Kalkar to Ostend | 149.39 mi (240.42 km) |
| Kalkar to Oud-Heverlee | 94.08 mi (151.40 km) |
| Kalkar to Oud-Turnhout | 63.39 mi (102.01 km) |
| Kalkar to Oudenaarde | 131.54 mi (211.69 km) |
| Kalkar to Oudenburg | 146.83 mi (236.30 km) |
| Kalkar to Oupeye | 76.55 mi (123.20 km) |
| Kalkar to Overijse | 100.72 mi (162.09 km) |
| Kalkar to Overpelt | 52.17 mi (83.97 km) |
| Kalkar to Paal | 68.32 mi (109.95 km) |
| Kalkar to Peer | 55.31 mi (89.01 km) |
| Kalkar to Pepinster | 83.57 mi (134.50 km) |
| Kalkar to Peruwelz | 144.66 mi (232.81 km) |
| Kalkar to Perwez | 100.14 mi (161.15 km) |
| Kalkar to Philippeville | 130.58 mi (210.15 km) |