| Nieuwkoop to Montana | 1,044.63 mi (1,681.18 km) |
| Nieuwkoop to Nova Zagora | 1,192.22 mi (1,918.70 km) |
| Nieuwkoop to Novi Iskar | 1,077.84 mi (1,734.61 km) |
| Nieuwkoop to Novi Pazar | 1,200.12 mi (1,931.41 km) |
| Nieuwkoop to Omurtag | 1,180.37 mi (1,899.62 km) |
| Nieuwkoop to Panagyurishte | 1,122.87 mi (1,807.08 km) |
| Nieuwkoop to Parvomay | 1,180.28 mi (1,899.48 km) |
| Nieuwkoop to Pavlikeni | 1,131.71 mi (1,821.32 km) |
| Nieuwkoop to Pazardzhik | 1,142.70 mi (1,839.00 km) |
| Nieuwkoop to Pernik | 1,075.81 mi (1,731.35 km) |
| Nieuwkoop to Peshtera | 1,149.48 mi (1,849.91 km) |
| Nieuwkoop to Petrich | 1,141.57 mi (1,837.18 km) |
| Nieuwkoop to Pleven | 1,097.46 mi (1,766.20 km) |
| Nieuwkoop to Plovdiv | 1,160.52 mi (1,867.67 km) |
| Nieuwkoop to Pomorie | 1,250.58 mi (2,012.62 km) |
