| Potomac to Travagliato | 4,258.62 mi (6,853.59 km) |
| Potomac to Traversetolo | 4,300.64 mi (6,921.22 km) |
| Potomac to Trebaseleghe | 4,340.33 mi (6,985.09 km) |
| Potomac to Trebisacce | 4,740.35 mi (7,628.86 km) |
| Potomac to Trecastagni | 4,761.45 mi (7,662.81 km) |
| Potomac to Trecate | 4,203.83 mi (6,765.41 km) |
| Potomac to Treia | 4,472.71 mi (7,198.14 km) |
| Potomac to Trento | 4,284.86 mi (6,895.82 km) |
| Potomac to Trentola | 4,594.67 mi (7,394.40 km) |
| Potomac to Trepuzzi | 4,787.03 mi (7,703.98 km) |
| Potomac to Trescore Balneario | 4,243.11 mi (6,828.63 km) |
| Potomac to Treviglio | 4,237.89 mi (6,820.23 km) |
| Potomac to Trevignano | 4,337.13 mi (6,979.94 km) |
| Potomac to Treviso | 4,345.44 mi (6,993.31 km) |
| Potomac to Trezzano sul Naviglio | 4,218.17 mi (6,788.48 km) |
