| Cities | Distance |
|---|---|
| Duzce to Popovo | 306.17 mi (492.73 km) |
| Duzce to Provadia | 250.44 mi (403.04 km) |
| Duzce to Radnevo | 288.21 mi (463.82 km) |
| Duzce to Radomir | 439.41 mi (707.16 km) |
| Duzce to Rakitovo | 374.88 mi (603.31 km) |
| Duzce to Rakovski | 335.29 mi (539.60 km) |
| Duzce to Razgrad | 301.66 mi (485.48 km) |
| Duzce to Razlog | 405.16 mi (652.04 km) |
| Duzce to Ruse | 336.18 mi (541.04 km) |
| Duzce to Samokov | 406.09 mi (653.54 km) |
| Duzce to Sandanski | 412.33 mi (663.59 km) |
| Duzce to Sevlievo | 345.30 mi (555.70 km) |
| Duzce to Shumen | 274.58 mi (441.90 km) |
| Duzce to Silistra | 301.04 mi (484.47 km) |
| Duzce to Sliven | 279.27 mi (449.44 km) |