| Rockford to Hutchinson (Kansas) | 549.09 mi (883.67 km) |
| Rockford to Hutchinson (Minnesota) | 321.83 mi (517.94 km) |
| Rockford to Hutto (Texas) | 935.92 mi (1,506.22 km) |
| Rockford to Hyattsville (Maryland) | 674.06 mi (1,084.80 km) |
| Rockford to Hybla Valley (Virginia) | 673.86 mi (1,084.48 km) |
| Rockford to Idaho Falls (Idaho) | 1,162.60 mi (1,871.02 km) |
| Rockford to Idylwood (Virginia) | 663.76 mi (1,068.21 km) |
| Rockford to Ilchester (Maryland) | 676.38 mi (1,088.53 km) |
| Rockford to Immokalee (Florida) | 1,176.37 mi (1,893.18 km) |
| Rockford to Imperial (California) | 1,582.69 mi (2,547.09 km) |
| Rockford to Imperial Beach (California) | 1,668.89 mi (2,685.81 km) |
| Rockford to Independence (Kentucky) | 329.07 mi (529.58 km) |
| Rockford to Independence (Missouri) | 353.12 mi (568.29 km) |
| Rockford to Indian Trail (North Carolina) | 672.40 mi (1,082.12 km) |
| Rockford to Indiana (Pennsylvania) | 525.22 mi (845.26 km) |
