| Rockford to Pottstown (Pennsylvania) | 709.94 mi (1,142.53 km) |
| Rockford to Pottsville (Pennsylvania) | 673.74 mi (1,084.28 km) |
| Rockford to Poughkeepsie (New York) | 777.76 mi (1,251.69 km) |
| Rockford to Poulsbo (Washington) | 1,669.52 mi (2,686.83 km) |
| Rockford to Poway (California) | 1,649.01 mi (2,653.83 km) |
| Rockford to Powder Springs (Georgia) | 626.75 mi (1,008.65 km) |
| Rockford to Powell (Ohio) | 342.69 mi (551.50 km) |
| Rockford to Powell (Tennessee) | 507.40 mi (816.59 km) |
| Rockford to Prairie Ridge (Washington) | 1,646.09 mi (2,649.13 km) |
| Rockford to Prairie Village (Kansas) | 369.33 mi (594.38 km) |
| Rockford to Prairieville (Louisiana) | 831.93 mi (1,338.86 km) |
| Rockford to Prattville (Alabama) | 691.97 mi (1,113.63 km) |
| Rockford to Preakness (New Jersey) | 771.17 mi (1,241.08 km) |
| Rockford to Prescott (Arizona) | 1,366.66 mi (2,199.43 km) |
| Rockford to Prescott Valley (Arizona) | 1,359.86 mi (2,188.48 km) |
