| Rockford to Zambrow | 4,696.67 mi (7,558.56 km) |
| Rockford to Zamosc | 4,834.16 mi (7,779.82 km) |
| Rockford to Zary | 4,526.01 mi (7,283.91 km) |
| Rockford to Zawiercie | 4,719.34 mi (7,595.04 km) |
| Rockford to Zdunska Wola | 4,655.01 mi (7,491.52 km) |
| Rockford to Zdzieszowice | 4,679.75 mi (7,531.33 km) |
| Rockford to Zgierz | 4,658.48 mi (7,497.09 km) |
| Rockford to Zgorzelec | 4,542.33 mi (7,310.17 km) |
| Rockford to Ziebice | 4,634.96 mi (7,459.24 km) |
| Rockford to Zielona Gora | 4,525.59 mi (7,283.24 km) |
| Rockford to Zielonka | 4,693.88 mi (7,554.07 km) |
| Rockford to Zlocieniec | 4,474.79 mi (7,201.48 km) |
| Rockford to Zlotoryja | 4,573.93 mi (7,361.03 km) |
| Rockford to Zlotow | 4,515.18 mi (7,266.48 km) |
| Rockford to Znin | 4,558.59 mi (7,336.34 km) |
