| Round Rock to Thornaby on Tees | 4,766.96 mi (7,671.69 km) |
| Round Rock to Thornbury | 4,801.99 mi (7,728.06 km) |
| Round Rock to Thorne | 4,806.21 mi (7,734.85 km) |
| Round Rock to Thornton | 4,767.76 mi (7,672.97 km) |
| Round Rock to Thornton Heath | 4,902.53 mi (7,889.85 km) |
| Round Rock to Thorpe Saint Andrew | 4,921.12 mi (7,919.78 km) |
| Round Rock to Thundersley | 4,924.56 mi (7,925.31 km) |
| Round Rock to Tilbury | 4,918.87 mi (7,916.15 km) |
| Round Rock to Tilehurst | 4,864.47 mi (7,828.61 km) |
| Round Rock to Timperley | 4,760.77 mi (7,661.72 km) |
| Round Rock to Tipton | 4,794.08 mi (7,715.32 km) |
| Round Rock to Tiptree | 4,923.50 mi (7,923.60 km) |
| Round Rock to Tiverton | 4,783.21 mi (7,697.83 km) |
| Round Rock to Todmorden | 4,760.65 mi (7,661.52 km) |
| Round Rock to Tonbridge | 4,923.54 mi (7,923.67 km) |
