| Rockford to Troy (Michigan) | 302.62 mi (487.02 km) |
| Rockford to Troy (Missouri) | 248.26 mi (399.54 km) |
| Rockford to Troy (New York) | 783.56 mi (1,261.02 km) |
| Rockford to Troy (Ohio) | 294.86 mi (474.54 km) |
| Rockford to Truckee (California) | 1,630.89 mi (2,624.66 km) |
| Rockford to Trujillo Alto (Puerto Rico) | 2,134.29 mi (3,434.80 km) |
| Rockford to Trumbull Center (Connecticut) | 820.41 mi (1,320.32 km) |
| Rockford to Trussville (Alabama) | 610.61 mi (982.68 km) |
| Rockford to Tualatin (Oregon) | 1,681.86 mi (2,706.69 km) |
| Rockford to Tuckahoe (Virginia) | 687.72 mi (1,106.78 km) |
| Rockford to Tucker (Georgia) | 638.53 mi (1,027.62 km) |
| Rockford to Tucson (Arizona) | 1,382.74 mi (2,225.31 km) |
| Rockford to Tucson Estates (Arizona) | 1,393.39 mi (2,242.44 km) |
| Rockford to Tucson Mountains (Arizona) | 1,386.86 mi (2,231.94 km) |
| Rockford to Tukwila (Washington) | 1,652.25 mi (2,659.04 km) |
