| Potomac to Tonypandy | 3,527.74 mi (5,677.35 km) |
| Potomac to Tonyrefail | 3,529.34 mi (5,679.92 km) |
| Potomac to Torquay | 3,547.57 mi (5,709.27 km) |
| Potomac to Torton | 3,563.98 mi (5,735.68 km) |
| Potomac to Tottenham | 3,666.66 mi (5,900.91 km) |
| Potomac to Totteridge | 3,660.46 mi (5,890.94 km) |
| Potomac to Tottington | 3,534.55 mi (5,688.32 km) |
| Potomac to Towcester | 3,617.82 mi (5,822.32 km) |
| Potomac to Tranent | 3,470.46 mi (5,585.16 km) |
| Potomac to Tredegar | 3,533.34 mi (5,686.37 km) |
| Potomac to Trentham | 3,552.75 mi (5,717.60 km) |
| Potomac to Tring | 3,638.30 mi (5,855.29 km) |
| Potomac to Troon | 3,412.04 mi (5,491.15 km) |
| Potomac to Trowbridge | 3,585.01 mi (5,769.52 km) |
| Potomac to Truro | 3,487.65 mi (5,612.83 km) |
