| Kalkar to Montana | 972.92 mi (1,565.77 km) |
| Kalkar to Nova Zagora | 1,120.39 mi (1,803.09 km) |
| Kalkar to Novi Iskar | 1,006.27 mi (1,619.43 km) |
| Kalkar to Novi Pazar | 1,128.38 mi (1,815.96 km) |
| Kalkar to Omurtag | 1,108.53 mi (1,784.01 km) |
| Kalkar to Panagyurishte | 1,051.22 mi (1,691.77 km) |
| Kalkar to Parvomay | 1,108.56 mi (1,784.06 km) |
| Kalkar to Pavlikeni | 1,059.86 mi (1,705.69 km) |
| Kalkar to Pazardzhik | 1,071.10 mi (1,723.77 km) |
| Kalkar to Pernik | 1,004.39 mi (1,616.40 km) |
| Kalkar to Peshtera | 1,077.94 mi (1,734.78 km) |
| Kalkar to Petrich | 1,070.61 mi (1,722.98 km) |
| Kalkar to Pleven | 1,025.62 mi (1,650.58 km) |
| Kalkar to Plovdiv | 1,088.86 mi (1,752.35 km) |
| Kalkar to Pomorie | 1,178.77 mi (1,897.04 km) |
