| Risca to Troy (Michigan) | 3,624.64 mi (5,833.30 km) |
| Risca to Troy (Missouri) | 4,096.07 mi (6,591.98 km) |
| Risca to Troy (New York) | 3,239.15 mi (5,212.91 km) |
| Risca to Troy (Ohio) | 3,780.70 mi (6,084.44 km) |
| Risca to Truckee (California) | 5,102.46 mi (8,211.61 km) |
| Risca to Trujillo Alto (Puerto Rico) | 4,075.67 mi (6,559.16 km) |
| Risca to Trumbull Center (Connecticut) | 3,281.33 mi (5,280.79 km) |
| Risca to Trussville (Alabama) | 4,178.37 mi (6,724.44 km) |
| Risca to Tualatin (Oregon) | 4,837.37 mi (7,784.99 km) |
| Risca to Tuckahoe (Virginia) | 3,622.99 mi (5,830.64 km) |
| Risca to Tucker (Georgia) | 4,071.10 mi (6,551.80 km) |
| Risca to Tucson (Arizona) | 5,191.48 mi (8,354.88 km) |
| Risca to Tucson Estates (Arizona) | 5,198.97 mi (8,366.94 km) |
| Risca to Tucson Mountains (Arizona) | 5,191.58 mi (8,355.03 km) |
| Risca to Tukwila (Washington) | 4,705.37 mi (7,572.56 km) |
