| Cities | Distance |
|---|---|
| Zonguldak to Popovo | 312.55 mi (502.99 km) |
| Zonguldak to Provadia | 252.88 mi (406.97 km) |
| Zonguldak to Radnevo | 307.25 mi (494.47 km) |
| Zonguldak to Radomir | 460.34 mi (740.84 km) |
| Zonguldak to Rakitovo | 399.42 mi (642.80 km) |
| Zonguldak to Rakovski | 356.12 mi (573.13 km) |
| Zonguldak to Razgrad | 304.87 mi (490.65 km) |
| Zonguldak to Razlog | 430.86 mi (693.41 km) |
| Zonguldak to Ruse | 338.98 mi (545.54 km) |
| Zonguldak to Samokov | 428.11 mi (688.98 km) |
| Zonguldak to Sandanski | 440.51 mi (708.93 km) |
| Zonguldak to Sevlievo | 358.62 mi (577.14 km) |
| Zonguldak to Shumen | 278.53 mi (448.25 km) |
| Zonguldak to Silistra | 294.45 mi (473.87 km) |
| Zonguldak to Sliven | 292.79 mi (471.20 km) |