| Rockford to Oststeinbek | 4,279.83 mi (6,887.72 km) |
| Rockford to Ottendorf-Okrilla | 4,500.56 mi (7,242.95 km) |
| Rockford to Ottersberg | 4,262.14 mi (6,859.25 km) |
| Rockford to Ottobrunn | 4,553.84 mi (7,328.71 km) |
| Rockford to Ottweiler | 4,334.87 mi (6,976.29 km) |
| Rockford to Overath | 4,278.85 mi (6,886.15 km) |
| Rockford to Oyten | 4,259.06 mi (6,854.30 km) |
| Rockford to Paderborn | 4,301.51 mi (6,922.61 km) |
| Rockford to Papenburg | 4,202.59 mi (6,763.42 km) |
| Rockford to Parchim | 4,341.21 mi (6,986.50 km) |
| Rockford to Pasewalk | 4,410.05 mi (7,097.28 km) |
| Rockford to Passau | 4,597.87 mi (7,399.55 km) |
| Rockford to Pattensen | 4,315.79 mi (6,945.59 km) |
| Rockford to Pegnitz | 4,479.40 mi (7,208.89 km) |
| Rockford to Peine | 4,329.93 mi (6,968.35 km) |
