| Cities | Distance |
|---|---|
| Duzce to Karlovo | 350.18 mi (563.56 km) |
| Duzce to Karnobat | 248.26 mi (399.54 km) |
| Duzce to Kavarna | 230.21 mi (370.49 km) |
| Duzce to Kazanlak | 321.16 mi (516.87 km) |
| Duzce to Knezha | 406.00 mi (653.40 km) |
| Duzce to Kostinbrod | 430.83 mi (693.36 km) |
| Duzce to Kozloduy | 430.15 mi (692.26 km) |
| Duzce to Kyustendil | 449.11 mi (722.77 km) |
| Duzce to Levski | 354.59 mi (570.66 km) |
| Duzce to Lom | 453.80 mi (730.31 km) |
| Duzce to Lovech | 366.63 mi (590.04 km) |
| Duzce to Lukovit | 393.96 mi (634.02 km) |
| Duzce to Lyaskovets | 320.04 mi (515.05 km) |
| Duzce to Mezdra | 414.67 mi (667.35 km) |
| Duzce to Momchilgrad | 302.29 mi (486.48 km) |