| Rockford to Pelham (Alabama) | 630.89 mi (1,015.32 km) |
| Rockford to Pell City (Alabama) | 619.95 mi (997.72 km) |
| Rockford to Pella (Iowa) | 207.03 mi (333.18 km) |
| Rockford to Pembroke Pines (Florida) | 1,226.78 mi (1,974.31 km) |
| Rockford to Pendleton (Oregon) | 1,489.60 mi (2,397.28 km) |
| Rockford to Pensacola (Florida) | 823.13 mi (1,324.70 km) |
| Rockford to Peoria (Arizona) | 1,387.68 mi (2,233.25 km) |
| Rockford to Peoria (Illinois) | 108.00 mi (173.81 km) |
| Rockford to Perris (California) | 1,631.31 mi (2,625.34 km) |
| Rockford to Perry (Georgia) | 736.60 mi (1,185.44 km) |
| Rockford to Perry Hall (Maryland) | 686.10 mi (1,104.16 km) |
| Rockford to Perrysburg (Ohio) | 283.25 mi (455.85 km) |
| Rockford to Perth Amboy (New Jersey) | 775.08 mi (1,247.36 km) |
| Rockford to Peru (Indiana) | 186.13 mi (299.55 km) |
| Rockford to Petal (Mississippi) | 754.00 mi (1,213.44 km) |
