| Potomac to Torre del Mar | 3,876.38 mi (6,238.43 km) |
| Potomac to Torre-Pacheco | 4,000.64 mi (6,438.40 km) |
| Potomac to Torredembarra | 4,007.25 mi (6,449.05 km) |
| Potomac to Torredonjimeno | 3,852.85 mi (6,200.56 km) |
| Potomac to Torrejon de Ardoz | 3,795.82 mi (6,108.78 km) |
| Potomac to Torrejon de la Calzada | 3,788.77 mi (6,097.44 km) |
| Potomac to Torrelavega | 3,691.00 mi (5,940.09 km) |
| Potomac to Torrelodones | 3,771.92 mi (6,070.31 km) |
| Potomac to Torremolinos | 3,860.45 mi (6,212.79 km) |
| Potomac to Torrente | 3,971.16 mi (6,390.97 km) |
| Potomac to Torrevieja | 4,005.93 mi (6,446.93 km) |
| Potomac to Torrijos | 3,771.76 mi (6,070.06 km) |
| Potomac to Torroella de Montgri | 4,060.14 mi (6,534.16 km) |
| Potomac to Torrox | 3,883.82 mi (6,250.40 km) |
| Potomac to Tortosa | 3,976.33 mi (6,399.28 km) |
