| Potomac to Tours | 3,799.34 mi (6,114.45 km) |
| Potomac to Trappes | 3,819.98 mi (6,147.66 km) |
| Potomac to Treillieres | 3,699.95 mi (5,954.50 km) |
| Potomac to Trelaze | 3,747.78 mi (6,031.47 km) |
| Potomac to Trets | 4,132.68 mi (6,650.91 km) |
| Potomac to Triel-sur-Seine | 3,814.93 mi (6,139.53 km) |
| Potomac to Troyes | 3,920.37 mi (6,309.23 km) |
| Potomac to Tulle | 3,904.18 mi (6,283.16 km) |
| Potomac to Urrugne | 3,799.44 mi (6,114.60 km) |
| Potomac to Ussel | 3,920.08 mi (6,308.75 km) |
| Potomac to Vaires-sur-Marne | 3,844.29 mi (6,186.79 km) |
| Potomac to Valbonne | 4,185.51 mi (6,735.92 km) |
| Potomac to Valence | 4,051.93 mi (6,520.96 km) |
| Potomac to Valenciennes | 3,842.81 mi (6,184.41 km) |
| Potomac to Valentigney | 4,060.43 mi (6,534.64 km) |
