| Rockford to Norton (Ohio) | 392.18 mi (631.15 km) |
| Rockford to Norton Shores (Michigan) | 155.78 mi (250.70 km) |
| Rockford to Norwalk (California) | 1,670.51 mi (2,688.43 km) |
| Rockford to Norwalk (Connecticut) | 809.84 mi (1,303.31 km) |
| Rockford to Norwalk (Iowa) | 243.90 mi (392.52 km) |
| Rockford to Norwalk (Ohio) | 339.96 mi (547.12 km) |
| Rockford to Norwich (Connecticut) | 872.88 mi (1,404.77 km) |
| Rockford to Norwood (Ohio) | 322.64 mi (519.25 km) |
| Rockford to Novato (California) | 1,779.74 mi (2,864.21 km) |
| Rockford to Novi (Michigan) | 284.92 mi (458.54 km) |
| Rockford to O'Fallon (Illinois) | 256.96 mi (413.53 km) |
| Rockford to O'Fallon (Missouri) | 255.28 mi (410.84 km) |
| Rockford to Oak Creek (Wisconsin) | 73.09 mi (117.62 km) |
| Rockford to Oak Forest (Illinois) | 81.15 mi (130.60 km) |
| Rockford to Oak Grove (Oregon) | 1,674.88 mi (2,695.46 km) |
