| Nieuwkoop to Devnya | 1,220.30 mi (1,963.88 km) |
| Nieuwkoop to Dimitrovgrad | 1,197.00 mi (1,926.39 km) |
| Nieuwkoop to Dobrich | 1,216.00 mi (1,956.96 km) |
| Nieuwkoop to Dospat | 1,163.27 mi (1,872.11 km) |
| Nieuwkoop to Dupnitsa | 1,095.17 mi (1,762.50 km) |
| Nieuwkoop to Elhovo | 1,228.20 mi (1,976.60 km) |
| Nieuwkoop to Etropole | 1,100.36 mi (1,770.87 km) |
| Nieuwkoop to Gabrovo | 1,149.11 mi (1,849.31 km) |
| Nieuwkoop to Gorna Oryahovitsa | 1,151.15 mi (1,852.60 km) |
| Nieuwkoop to Gotse Delchev | 1,151.74 mi (1,853.54 km) |
| Nieuwkoop to Harmanli | 1,213.78 mi (1,953.39 km) |
| Nieuwkoop to Haskovo | 1,201.26 mi (1,933.24 km) |
| Nieuwkoop to Ihtiman | 1,112.29 mi (1,790.06 km) |
| Nieuwkoop to Isperih | 1,170.04 mi (1,883.00 km) |
| Nieuwkoop to Kardzhali | 1,207.32 mi (1,942.99 km) |
