| Potomac to Thorigny-sur-Marne | 3,847.09 mi (6,191.30 km) |
| Potomac to Thouare-sur-Loire | 3,709.73 mi (5,970.23 km) |
| Potomac to Thouars | 3,770.67 mi (6,068.31 km) |
| Potomac to Tinqueux | 3,891.03 mi (6,262.00 km) |
| Potomac to Tomblaine | 3,998.95 mi (6,435.69 km) |
| Potomac to Tonneins | 3,862.90 mi (6,216.74 km) |
| Potomac to Torcy | 3,845.45 mi (6,188.66 km) |
| Potomac to Toul | 3,985.94 mi (6,414.75 km) |
| Potomac to Toulon | 4,153.73 mi (6,684.79 km) |
| Potomac to Toulouse | 3,936.62 mi (6,335.37 km) |
| Potomac to Tourcoing | 3,818.76 mi (6,145.71 km) |
| Potomac to Tourlaville | 3,647.69 mi (5,870.38 km) |
| Potomac to Tournan-en-Brie | 3,853.26 mi (6,201.22 km) |
| Potomac to Tournefeuille | 3,932.63 mi (6,328.96 km) |
| Potomac to Tournon-sur-Rhone | 4,045.34 mi (6,510.34 km) |
