| Glen Carbon to Troy (Michigan) | 444.90 mi (716.00 km) |
| Glen Carbon to Troy (Missouri) | 55.21 mi (88.85 km) |
| Glen Carbon to Troy (New York) | 895.05 mi (1,440.44 km) |
| Glen Carbon to Troy (Ohio) | 320.22 mi (515.34 km) |
| Glen Carbon to Truckee (California) | 1,613.49 mi (2,596.65 km) |
| Glen Carbon to Trujillo Alto (Puerto Rico) | 2,013.22 mi (3,239.96 km) |
| Glen Carbon to Trumbull Center (Connecticut) | 904.02 mi (1,454.89 km) |
| Glen Carbon to Trussville (Alabama) | 401.13 mi (645.56 km) |
| Glen Carbon to Tualatin (Oregon) | 1,729.82 mi (2,783.88 km) |
| Glen Carbon to Tuckahoe (Virginia) | 677.65 mi (1,090.57 km) |
| Glen Carbon to Tucker (Georgia) | 467.63 mi (752.58 km) |
| Glen Carbon to Tucson (Arizona) | 1,257.88 mi (2,024.37 km) |
| Glen Carbon to Tucson Estates (Arizona) | 1,270.02 mi (2,043.89 km) |
| Glen Carbon to Tucson Mountains (Arizona) | 1,264.24 mi (2,034.60 km) |
| Glen Carbon to Tukwila (Washington) | 1,721.43 mi (2,770.38 km) |
